INTERNRTIONRL. A quarterly news magazine the latest word in anechoic room design... lAC's new Metadyne Anechoic Wedge represents a scientific breakthrough in anechoic room design. The rugged perforated metallic Metadyne wedge offers benefits to researchers and quality control managers that heretofore have been unattainable. These include: • Impact resistance • Resistance to erosion & circulation of fibrous materials • Readily cleanable and paintable surfaces • High fire-resistance (in case of spills or use of flammable materials) • Interchangeability and adjustability Developed in lAC's Aero-Acoustic Laboratory, the Metadyne design has been proven in recent field tests which have exceeded customer specifications. Deviations from theoretical freefield inverse square law were well within ISO Standards. One of ten Hemi-Anechoic Rooms with Metadyne Wedges at Advanced Engineering Center, Ford Motor Company, Dearborn, Michigan. Specifications required cut-off frequencies of 125 Hz, 90 Hz, and 60 Hz. Ideally suited to acoustic laboratories working with engines, heavy equipment, dynamometers and/or flammable materials. The Metadyne Anechoic Wedge System is an alternative to our standard Microdyne™ Anechoic Wedges utilizing glass-fiber or foam-base materials. lAC Microdyne Anechoic Room with 125 Hz cut-off foam wedges at Steelcase Corporation acoustical laboratory, Grand Rapids, Michigan. Two Macrodyne Reverberation Rooms are also part of this research and development facility. One of three similar sized lAC Hemi-Anechoic Rooms, with glassfiber wedge cut-off frequencies of 90 Hz, at Chrysler's new Tech Center, Farmington Hills, Michigan. Albert Kahn were the Architects and Walbridge Aldinger, Construction Managers. Request 20-page lAC Bulletin 7.0102 with technical data on all types of lAC Anechoic Rooms, including Mini-Anechoic Rooms for small-component testing. For an overview of lAC products and services request Bulletin 0.0002. INDUSTRIAL ACOUSTICS COMPANY SINCE 1949 - THE STANDARD Of SILENCE LEADERS IN NOISE CONTROL ENGINEERING, PRODUCTS AND SYSTEMS UNITED STATES UNITED KINGDOM GERMANY 1160 COMMERCE AVENUE CENTRAL TRADING ESTATE SOHLWEG 24 BRONX, NEW YORK 10462-5599 STAINES, MIDDLESEX, TW18 4XB D-4055 NIEDERKRUCHTEN PHONE: (718) 931-8000 PHONE: (0784) 456-251 PHONE: (02163) 8431 FAX: (718) 863-1138 FAX: (0784) 463-303. TELEX: 25518 FAX: (02163) 80618 TECHNICAL REPRESENTATION IN PRINCIPAL CITIES THROUGHOUT THE WORLD Reader Service Number 2 Editorial Staff A. Cops. European Editor A. Lawrence. Asia-Pacific Editor G. Maling. Jr.. Pan-American Editor w.w. Lang. Feature Editor G. Mating. Jr.. Managing Editor Produced by IEEE Magazines INTER Fran Zappulla. Associate Publisher Susan Schneiderman. Advertising Sales Manager Janet Dudar, Art Director Bob Smrek, Production Manager ATID A quarterly news magazine Editorial Offices Noise Control Foundation Volume 2, Number 1 - 1994 March P.O Box 2461)Arlington Branch Poughkeepsie. New York. U.S.A. Noise/News InlemalionalllSSN 1()11-643X) is a quarterly newsmagazine published jointly by the International lnstitute of Noise Control Engineering and Ihe Inslilule of Noise Control Engineering of the USA .. Inc. Advertising services and produclion control arc provided hy the IEEE !'Aagalines group of the Institute of Electrical and Electronics Engineers. Inc. Editorial services an: provided by Noise Cornrol Foundation. Inc. Feature arncles for Noise/News Imernmional are selected by the edi10rs. Responsibility for the editorial content rests upon the authors and not upon International INCE. INCE/lISA. the IEEE. Noise Control Foundation. the societies or their members.Product information is provided a\ 3. reader service and doc!\ not consutute endorsement by the societies, or their members. SUBSCRIPTIONS: In the USA. the annual subscription rate IS USD "(l.on. postpaid. which i,s included in Ihe dues of Members and AS"'leialeS of INCE/USA. Nonmember subscription rales available upon request. Single copy price is USD 10.00. Addre"s correspondence concerning subscriptions 10 INCE/USA. P.O. Box 3206. Arlington Branch. Poughkeepsie. NY I2603·()1()6. In all other countries, the annual subscription mte is CHF 80 via surface mail: airmail delivery subject 10 additional charge. Single copy price is CHF 20. Address correspondence concerning subscriptions 10 1'NCE General Secretarial. Celesujnenlaan 200 D. B-300l. Heverlee-Lcuven, Belgium. EDITORIAL CORRESPOSDENCE: Address 10 George C. Milling. Jr., Manag ing Ediror. NNI. c/o INCEJUSA. P,O. Box ,H06. Arlington Branch. Poughkeepsie, NY 12603.lJSA; telephone +1914 462-4006 or FAX +1'11447]-9325, COPYRIGHT AND REPRINT PERMISSIONS: Copyright 1994 by lnstitute of Noise Control Engineering of the USA. Inc, For .11 other copying. reprint. or republication permission. write 10 the Managing Edilor at the address above. ADVERTISING: For information about ad ..- ertising. conraci Susan Schneiderman. Advertising Sales Manager. IEEE Magazmes, 445 Hoes Lane. Piscataway, NJ ()S8551331. liSA: telephone: +1 90S 562-3946: FAX: +1 'lOR 9RI-1855. e Cover photo courtesy of tbe Bahia !'AarResort and Yachting Center 1994 March FEATURES NOISE-CON 94 Technical Program. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Subject Classification in Noise Control Engineering ....... 12 INTER-NOISE 94 An Invitation to Participate . . . . . . . . . . . . . . . . . . . . . . . 26 DEPARTMENTS President's Column Editor's View . . . . Member Society Profile People . European News Pan-American News Asia-Pacific News INCE Update . Books Product News Specialized Meetings World Conference Calendar NNI Directory. . . . . . . . International Advertiser Contacts Directory of Noise Control Servlces Noise/News International 4 6 7 8 43 47 50 51 54 57 58 59 62 63 64 1 •• I-Inee International Institute of Noise Control Engineering .W. La ng. President A. Co p Secretary-General . ops, European Editor. I . Lawrence, Asia-Pacific Editor, I G. ' . Maling• Jr.• Managin g Editor and Pan-American Editor. 'I W.\\T. Lang, Feature Editor Directors: P.V. Bruel, A. Cops T. Em bleto n, T. Kihlman, F. Ingerslev, A. Lawrence, G .C. laling, Jr., .I. lattei Member Societies of International INeE Australia: Australian Acoustical Socie ty, Darlin ghurst Austria: Osterreichischer Arbeitsrin g fiir Ldrmbekiimpfung, Wien Belgium: Association Bei ge des Acousticiens, Limelette Brazil : Sociedade Brasileira de Ac ustica, Rio de Janeiro Canada: Canadian Aco ustical Association, Toronto China : Acoustical Society of China, Beij ing nrn'Hi=iHE UU Ulb:;LS Institute of Noise Control Engineering of the USA, Inc. 1994 Officers R ~J. Bernhard, Pre ident L.c. Suther la nd, President-Elect D.1. Yeager, Vice President . Membership D.G. Stephen. • \Iic(' President . Technical Activities .H. Marsh , Vice President Publications & External Affairs W.K. Connor, Secretary .I.G. eebold, Treasurer 1994 Directors R..J. Bernard \ •.1. Ca vana ugh E.M. C la rk W.K. Co nnor M.D. Egan .I.M. Hood F. Kir .chner R. Lot z R. ingh H.K. Sm ith L. '. Sut her la nd A.M. Teplitzky .I.K. Th omp on G.C. Tocci .1•.1. va n Houten 8. Walker 2 Czech Republic: Czech Acoustica l Society (Observer) , Praha Denmark: Aco ustical Society ofDenmark, Lyngby Finland: Acoustical Society ofFinland , Espoo France: Groupe Aco ustique Indu strielle et Environnement, Senlis Germany Deutsche Gesellschaft f iir Akustik , Oldenburg Germany: Nor menausschuss Akustik, Liirmminderun g und Schwi ngungstechni k im DIN und VDI , Dusseldorf Hungary: Acoustica l Commission of the Hungarian Academy of Sciences , Budap est Hungary: Scientific Soc iety fo r Optics. Aco ustics and Filmtechnics, Budapest India: Acoustical Society of Indi a (Observer), Ban galore Italy: Associazione Italiana di Acoustica, Roma Japan: Acoustical Society ofJapan , Tokyo Japan: Institute of Noise Control Engineering of Japan, Tokyo Korea : Acoustical Society ofKorea , Seo ul Netherlands: Nederlands Akoestisch Genootschap, Delft New Zealand: New Zealand Acoustical Society, A uckland Norway: Acoustica l Soc iety ofNorway, Trondheim Poland: Comm ittee on Aco ustics ofthe Polish Academy ofSciences , Warszawa Romania: Commission on Acous tics , Academia Romdna, Bucuresti Russia: East-European Acoustical Association, St. Petersburg Russia: Noise Control Association of the Baltic State Technical University (Institutional Member), St. Petersburg Russia: Russian Aco ustical Society (Observ er) . Moscow Singapore: Noise Sect ion, Environmental Engineering Society of Singapore, Singapore South Africa : Sout h African Acoustics Institute, Silve rton Sweden: Swedish Acoustical Soc iety, Gote borg Switzerland: Schweizerische Gese llschaft fiir Akus tik, Dilbendorf United Kingdom: Institute of Aco ustics. St. Albans U.S.A. Aco ustical Society ofAmerica , Woodbury, NY U.S.A. Inst itute of Noise Control Engineering of the U.S.A., Washington , DC Noise/News International 1994 March What's all the noise about? oise Radiated from a ew Venture Gear Transmission ~ Advanced noise prediction with e---------Now you can reduce offending noise sources and simultaneously minimize costly prototypes and testing. COMET/Acoustics is a complete general purpose acoustic analysis software which allows advanced noise prediction to be pertormed concurrently with the design and analysis cycle, saving time and money. Developed by engineers and everyday users, the software combines the most advanced techniques to provide an efficient, easy-to-use noise prediction tool. COMET/Acoustics includes the direct boundary element, indirect boundary element, and finite element methods. The software numerically computes the noise radiated from a vibrating structure or the noise generated in the interior of an enclosure. CONTACT US NOW For EWKient Sound Solutions MET® ACOUSTICS The solution to your noise problems COMET/ ACOIstlcs calles with its own Graphical User I.ter'ace (COMn/Visioa) that cOIItms pre- and post-processing capabllties 'or acoustic analysis and e..bedded translators 'or ANSYS, I-DEAS, HyperMesh, NASTRAN, and PATRAN. • Aerospace • Automotive • Construction Equipment • Consumer Products • Engine & Powertrain • HVAC • Industrial Equipment • nre/Vehide Systems • Transducer Design • Underwater Acoustics • Vehicle Interiors TIJ .... ~ APPLICATIONS: t Automated Analysis Corporation .... 2805 S.lndustriol, Suite 100. Ann Arbor, MI48104, USA (313) 973-1000· (313) 973-1190 fox COMET/Acoustics is a registered ITademark ofAutomated Analysis Corporation. Other brands and product names are ITademarks of their respective owners. Reader Service Number 6 President's Column Will Noise Regulations Ever Work? ore than a year has passed since the magical date of 1992 December 31 when the European Community was supposed to "come together." Fears were expressed that perhaps barriers would be erected to prevent the entry into the European internal market of goods produced by external manufacturers. As noted by Dr. K. Brinkmann elsewhere in this issue (see page 45), the date came and passed and a "Fortress Europe" on the economic front did not come into existence. Indeed, the high-level governmental discussions of recent months would make it appear that Europe and the rest of the world are moving towards a breaking down of international trade barriers. One wonders if, in the long run, trade barriers or internal regulations pertaining to manufactured goods can be made effective. In this news magazine, the reader will find reports (see, for example, Vol. 1, p. 190) on the failure of the regulations issued by the U.S. Environmental Protection Agency (EPA) in the 1970s to control the noise of the most objectionable sources. This raises the question: will noise regulations ever work? Certainly not by using the EPA regulatory procedures as the model. But if the regulations were to be properly formulated? When the EPA attempted to set upper limits on the noise emissions of products, the first thing done by the manufacturers of the targeted products was to obtain estimates of the costs of compliance. For most products so identified, the manufacturers went to lawyers for advice rather than to design or noise control engineers. The regulations were so poorly conceived that it was cheaper for manufacturers to hire lawyers to avoid compliance than to work on technical solutions in order to achieve compliance. Much of the USD 100 million wasted by the EPA in the 1970s was spent in com- M 4 batting the lawyers of the manufacturers. By the time the EPA effort was discontinued in the early 1980s, not a single case had been won in court, and the net benefit to the public of the EPA's decade-long struggle to regulate noise sources was naught. A noted lawyer, K. Conboy, commenting in the 1993-12-26 issue of the New York TImes on... "the degree of litigiousness in America that is simply unheard of in the rest of the world," writes: "We have seen the creation of a vast and complex network of rules, regulations, statutes and entitlements that have provided a Dionysian feast of revenues for even the least gifted of our profession." It is vitally important for the success of any regulation that it be considered to be in the vital interest of the public. In today's world, the media is the shaperofpublic opinion. The American media expresses only an occasional interest in environmental noise. But in some other geographical areas, the noise problem receives greater attention in the press and on television. For noise regulations to be effective, it is imperative that they be strongly supported by the public. Politicians, after all, are responsive to the real or imagined needs of their constituents. At least in America, engineers have played only a minor role in the development of noise standards. Up to now, it has been the lawyers and the bureaucrats who have been crafting the noise regulations from a knowledge base that has been largely devoid of an understanding of the fundamentals of acoustics. Successful noise regulations will only come about when engineers and designers are able to play an enhanced role in their development in the future. - William W Lang President,lnternationallNeE Noise/News International 1994 March Beauty or Beast? dB dB 70 70 60 50 40 30 20 10 10 0.05 0.1 0·2 0.5 10 kHz 0.05 0.1 0.2 0.5 1lI Relating objective measurements to a meaningful way. Compatibility with subjective impressions is a difficult task. traditional measurements is assured at When evaluating the sonic quality of the same time. products, wouldn't it make sense if Sonic Perceptions, Inc., in association measurement systems interpreted and evaluated sounds the way you do? with HEAD acoustics GmbH, is dedicated to the art and science of binaural recording Binaural measurement captures sounds and psychoacoustic analysis. With unsur- exactly as a listener would hear them, passed measurement systems as preserving spatial and temporal informa- well as service and technical tion. Comprehensive signal processing and support, we can help you solve psychoacoustic parameter evaluation work your most difficult noise problems. together with your perception of hearing to Let us bring out the beauty identify and quantify annoying sounds in in your product. Call us at (203) 838-2650 for more information or to arrange a demonstration. I_I HEAD acoustics GnbH Kopfbezogene Aufnatrne - U"ld WiOO<lfgabelectri< M<>6Iectri< Sonic Perceptions is the exclusive North American distributor of HEAD acoustics technology 28 Knight Street, Norwalk, Connecllcut 06851 tel 203.838.2650 fax 203.854.5702 Reader Service Number 8 kHz Editor's View Development of Noise Policy in the European Community D 6 elegates to INTER-NOISE 93 in Leuven, Belgium are well aware that there is intense activity on noise issues in the European Community (EC). A special session on European Noise Policy at the congress showed that there is great interest in this subject. In the Community, about 80 percent of the population lives in cities and towns, and the urban areas are thus the places where noise problems most affect the quality of life of citizens. Demographic trends, including population, household size, and space occupancy, point towards ever increasing noise problems in urban areas. Responsibility for the quality of the urban environment and for undertaking necessary remedial or improvement measures will be a matter for competent authorities, primarily local authorities. Transport and industry, are the key activities which impact the quality of the urban environment and which also stand to gain significantly from more rational planning and sustainable management of urban areas. Future noise activities of the Commission of the European Communities in the area of environmental protection are contained in the 5th Environmental Action Program which was approved by the Commission and adopted by the Council in 1993 February. The objective of the noise activities is that no person should be exposed to noise levels which endanger health and the quality of life. Taking the definition of health as defmed by the World Health Organization (WHO), it is the responsibility of the scientific community of physicians, physiologists, psychologists, sociolo- • the proportion of the population at present exposed to levels between 55-65 should not increase; • the proportion of the population presently exposed to levels less than 55 should not increase. These EC targets for the year 2000 are very ambitious; however it appears gists, and acousticians to define a state It appears that the EC has the opportu- ofcomplete physical, mental, and social well being in terms of noise impact. The EC actions to be undertaken up to the year 2000 are very important. In the program it is shown that the Commis- nity to make important progress before the end of the century, and we all want the plan to succeed. -Andre Cops European Editor sion is willing to fight noise for the EC residents most affected by noise at all levels of legislation and administration, namely the EC, the European Environmental Agency (EEA), the Member States (MS), and the Local Authorities (LAs). Actions to be taken are: • inventory of exposure levels in the EC (by 1994); • noise abatement program to be set up (by 1995); • further reduction of noise emissions (cars, trucks, aircraft, cranes, mowers, etc. (by 1995); • standardization of noise measurements and ratings continuous efforts); • measures to influence behavior, such as driving cars, flight procedures, industrial processes operating at night time (continuous efforts); • measures related to infrastructure and physical planning, such as better zoning around airports, industrial areas, main roads, and railways (continuous efforts). • EC noise targets up to the year 2000 are, for night-time exposures in equivalent A-weighted sound levels, the following: the exposure of the population to noise levels in excess of 65 should be eliminated; Noise/News International 1994 March Member Society Profile The Acoustical Society of Japan (ASJ) T he Acoustical Society of Japan (ASJ) promotes the advancement of the science and technology of acoustics in all its disciplines and the exchange of ideas in relation thereto. It was founded on April 15, 1936, by 15 members. By 1993, the membership had reached 4,203, including 3,697 Members, 22 Honorary Fellows, 37 Life Members, and 447 Student Members. Members are drawn from varying backgrounds and have varying interests. In addition to these individual member , the Society is supported by 228 Sustaining Members and 221 Special Members. There are three Regional Chapters: Kan ai, Tohoku, and Tokai. Each year in the spring and fall, the Society holds a three-day national meeting in different cities in Japan. The meeting covers a wide range of topics. In addition to the regular e sion , several special sessions are organized with invited lectures and contributed papers. In total, roughly 500 papers are presented and I ,000 people participate in each meeting. ASJ publishes the Journal of the Acoustical Society of Japan (in Japanese) monthly, and the Journa\ of the Acoustical Society of Japan(E) (in English) bimonthly. These journals include technical papers and review papers. The Society publishes text books and reference books for students, professors, and researchers to promote acoustics by the dissemination of information on various topics. The Society has eight technical committees: Architectural Acoustics, Electroacoustics, Musical Acoustics, oise and Vibration, Psychological and Physiological Acoustic, Speech, Ultrasonics and Underwater Acoustics, and Acoustical Chemistry. Each committee holds a meeting with paper presentations almost every month at various places in Japan. ASJ periodically offers This is the fifth in a series of articles 011 the history and activities of the Member Societies of InternationaIINCE.- Ed. 1994 March fundamental training courses as well as continuing education in various areas, such as psychological measurement and signal processing. The Society has hosted or sponsored a number of international conferences including the 6th ICA in 1968, INTEROISE 75 in 1975, the ASA-ASJ Joint Meeting in 1978 and 1988, the Japan-Korea Joint Symposium on Acoustics in 198\ and 1983, WESTPRAC since 1982, the China-Japan Joint Symposium on Acoustics in \985, ICASSP in 1986, and the International Symposium on Active Control of Sound and Vibration in 1991, the Japan-Korea Joint Symposium on Acoustics in Commemoration of the 10th Anniversary of the Acoustical Society of Korea in 1991. The following future events are also planned: INTER- OISE 94 and ICSLP 94, both in Yokohama in 1994, and the ASA-ASJ Joint Meeting in Hawaii in 1996. The events held in Japan give acousticians from other countries the opportunity to visit Japan, to the mutual benefit of all involved. ASJ presents several awards. The Prize for Distinguished Achievement in Acoustics is given to, at most, two persons a year for outstanding scientific achievements in acoustics. The Sato Prize is awarded for, at most, two outstanding papers appearing in the Journal of ASJ (either the Japanese or English editions) every year to commemorate Dr. Kozi Sato, a founding member. The Awaya Prize is given to six (or fewer) promising young re earchers every year for outstanding presentations given at the ASJ meetings, to commemorate Dr. Kiyoshi Awaya. The Prize for Outstanding Technological Development in Acoustics is given to about three groups or persons a year. An Executive Council Meeting is held every month. For more information on the ASJ, contact the Secretariat at the address on page 62. Noise/News International 7 People Lawrence Receives Australian Standards Award Anita Lawrence Professor Anita Lawrence of Australia has been presented with one of eight inaugural standards awards by Standards Australia. The award was for her work as a member of Standards Australia's Council and its Executive Board, the Multitechnics Standards Policy Board, and as Chairman of the Environment, Consumer and General Standards Advisory Committee. She is also a member of many technical commit- tees in several areas of acoustics. Professor Lawrence has had a significant impact on acoustics in Australia. She taught acoustics for over 30 years, and before that worked as an architect on banks, hotels and private houses with several consultants. She established the Master of Science (Acoustics) course in the Faculty of Architecture at the University of New South Wales in Sydney, Australia-which was one of the first, if not the first, formal acoustics course in Australia. Numerous Ph.D. and Masters degree students owe most of their acoustical training to Professor Lawrence, and they are now to be found in universities, government establishments, and industry throughout Australia as well as overseas. Professor Lawrence is the author of many papers, has contributed chapters to architectural science handbooks, and has written three books, including Acoustics and the Built Environment, a practical handbook on acoustics for physical planners, architects, services engineers, and builders. She currently serves as Asia-Pacific Editor for this magazine. Bernhard is Named Herrick Laboratories Director Robert J. Bernhard, Professor of Mechanical Engineering at Purdue University, West Lafayette, Indiana, USA, has been named Director of the Ray W. Herrick Laboratories at the University. The appointment was effective in 1994 January. Professor Bernhard is also serving as the 1994 President of INCE/USA. He served as a member of the INCE/USA Board of Directors from 1989 to 1991, and as INCE/USA Vice President for Technical Activities from 1990 to 1992. Professor Bernhard received his BSME in 1973 and his Ph.D. in Engineering Mechanics in 1982 from Iowa State University, and his MSME in 1976 from the University of Maryland. He was previously employed by the Westinghouse Electric Corporation (1973-1977), and Iowa State University (1977-1982). He joined the faculty of the School of Mechanical Engineering at 8 Purdue in 1982 as an Assistant Professor. He was promoted to Associate Professor in 1987 and to Professor in 1991. He is internationally known for his research on noise and vibration control of machinery as well as for contributions in the areas of computer aided modeling and design for noise reduction and active noise control. He has advised more than 30 advanced degree thesis students Robert J. Bernhard and has more than 100 research publications. The Herrick Laboratories are internationally known for engineering research in the areas of noise and vibration control and heating, ventilating, and airconditioning equipment. Research at the laboratories is funded primarily by U.S. and international corporations. In its 35 years of existence, the Laboratories have graduated more than 450 advanced engineering students. Professor Bernhard succeeds Professor Raymond Cohen who has been the Director since 1972. Professor Cohen was 1990 President of INCE/USA. Professor Bernhard is a member of the American Society of Mechanical Engineers, the Society of Automotive Engineers, the American Institute of Aeronautics and Astronautics, and the Acoustical Society of America. Richard J. Peppin Receives Waterfall Award Richard J. Peppin, founder and president of Scantek, Inc., has received the Wallace Waterfall award from the American Society for Testing and Materials (ASTM). The award was presented at the fall 1993 meeting of ASTM Committee E-33. The Wallace Waterfall Award is presented by Committee E-33 on Environmental Acoustics for outstanding contributions to standardization in acoustics. Mr. Peppin received the award .. .for his distinguished contribution to the development, preparation, and acceptance of standards in acoustics. Richard 1. Peppin has been active in INCE/USA affairs since 1979. He served as a director of INCE/USA for nine years, 1980-1982,1986-1988, and 1991-1993. He was the secretary of INCE/USA from 1979 to 1984, the vice president for external affairs from 1985-1987, and vice president for membership from 1990 to 1991. He served as chairman of ASTM E-33.04 on Applications of Acoustical Materials, and has headed several ASTM Task Groups including Impedance Tubes and Community Noise. In addition to his contributions to the development of ASTM standards, he has been a regular contributor to the standards programs of several other professional socities. NoiselNews International 1994 March Feature The NOISE-CON 94 Technical Program OISE-CON 94, the 1994 National Conference on Noise Control Engineering, will be held at the Bahia Mar Resort and Yachting Center in Fort Lauderdale, Florida, USA on 1994 May 01-04. The Conference is being sponsored by INCE/USA in cooperation with the Florida Atlantic University and the IBM Corporation. The Announcement and Call for Papers appeared on pages 155-158 of Volume 1 of this magazine, and an invitation to participate appeared on pages 213-216 of the same volume. The latter article included registration information for the conference. One hundred and eighty one abstracts have been received and accepted for presentation at NOISECON 94. The papers have tentatively been assigned to 36 different topic areas in noise control engineering; the technical sessions will be arranged when the authors have returned their contributions to the Conference Proceedings. Active noise control will be one of the highlights of NOISE-CON 94, with 28 papers currently scheduled for presentation. The 36 subject areas to be covered at NOISECON 94 are: N • • • • • • • • • • • • • • • • • • • • • Road Transportation Noise Noise Control of Rotating Machines Airport Noise Modeling Transportation Noise Road Transportation Noise Environmental Noise Experimental and Computational Methods in Noise Control Machinery Noise Control Noise Control of Rotating Machines Structure-borne Noise Techniques Numerical and Analytical Analyses of Noise and Vibration Systems Experimental and Measurement Analysis Noise Control in Buildings Structural Intensity and SEA Experimental and Computational Methods ill Noise Control Active Noise and Vibration Control Active Control Algorithms and Implementation Active Control Applications Active-Passive Noise Control Active Control Applications Structure-borne Noise Techniques 1994 March • Numerical and Analytical Analyses of Noise and Vibration Systems • Structure-borne Noise Techniques • Structural Intensity and SEA • Numerical and Analytical Analyses of Noise and Vibration Systems • Control of HVAC Noise • Insulation for Control of Interior Noise • Offshore Platform and Shipboard Noise Control • Noise Control in Buildings • Sound Quality: Criteria and Parameter Estimation • Airport Noise Modeling • Criteria for Room Acoustics • Experimental Facilities for Noise and Vibration Measurements • Experimental and Computational Methods in Noise Control • Numerical and Analytical Analyses of Noise and Vibration Systems • Noise Standards The titles of the abstracts received have been organized according to the INCE Classification of Subjects (See the feature article elsewhere in this issue.- Ed.), and are listed below. Further information on NOISE-CON 94 can be obtained from the Conference Secretariat, Susan Fish, Department of Ocean Engineering, Florida Atlantic University, 500 NW 20th Street, Boca Raton, Florida 33431, USA. Telephone: + 1 407 367 3430; FAX: + 1 407 367 3885. e-mail: fish@oe.fau.edu. EMISSION: NOISE SOURCES (Noise Generation and Control) Acoustical and Fluid Dynamic Similarity for Air-Moving Device Measurements on the ANSI Test Plenum. The Contribution to the Overall Noise Level of the Vibration of an Open Grid Bridge Deck • New Explanations for Modulation Sidebands in Gear Vibro-Acoustic Spectra. A Systematic Case Study to Improve Sound Quality of an Automotive Climate Control System. Control of Tones by Periodic Tip Lift Variation in Ducted Turbomachinery • Active Noise Control of Enclosed Axial-Flow Fans. Method for Characterizing Aerodynamic Sources of Sound with Applications to Computer Cooling Fans • Controlling Computer Fan Noise Emissions. Determination of Noise Sources in a Forward-Curved Centrifugal Blower Using Flow Visualization Methods. Electromagnetic Noise Problems ofthe Series Fractional Horse Power Motors. Influence of Helicopter Flight Profile on Ground Noise/News International 9 Noise. Transmission Loss Characteristics of Aircraft Sidewall Systems to Control Cabin Interior Noise. Distance Effects of Vehicle Noise. Tire Noise Resulting from an Open Grid Bridge Deck. Comparison of Innovative Approaches for Noise Pollution Evaluation • Transfer Function Techniques for Automotive Interior Noise due to the Induction System. Assessing Human Perception of Aerodynamic Automotive Noise. A State Space Acoustic Finite Element Analysis for Estimating Vehicle Interior Noise Level. Synchronous Tone Ventilation Noise in Automotive Alternators. Community Noise Impact ofthe Conversion from Conventional Diesel-Powered Trains to High-Speed Electric Trains on the Northeast Corridor. Psychoacoustic Tests on Tramway Noise. Design Modifications for Suppression of Radiated Noise from a Fiber Crimping Machine. Noise Suppressor of Industrial Gas Ejecting Device • Determination of the Hydroacoustic Transfer Matrix and Sources of a Pump. An Experimental Method. On the Noise of Percussion Drill Steel Rod. In-the-Hole Percussion Drilling Tools for Percussion Drill Noise Control PHYSICAL PHENOMENA Noise Generation in the Collapse of a Localized Density Pertubation in a Stratified Fluid • Sound Radiation and Scattering By Localized Vortices. Acoustical Resonance in Turbomachines • Experimental Study of the Pressure Field Beneath the A-Pillar Vortex ofa Road Vehicle Model • Empirical Refinements to Boundary Layer Transition Noise Models. Effect ofWeak Periodic Pressure Gradient on Streamwise Vortices Near a Wall. Sound Radiation from Structures in the Presence of Close-Fitting Sound Shields • Acoustic Scattering from Two Finite Fluidloaded Co-planar Coupled Plates. Noise Scattered Field Produced by Large Spherical Body • Acoustic Energy Flux and Transmission Loss in a Duct with a By-Pass NOISE CONTROL ELEMENTS (Noise Control by External Treatments) Noise Barrier Construction in a High Water Table Environment: An Alternative Method. Influence of Sound Transmission Path Anomalies upon Effectiveness of Active or Passive Sound Barriers for Transformers. Prediction of Response Probability Distribution For Various Type Sound Wall Systems Contaminated by a Background Noise. Sound Radiation from Ribbed Cylindrical Structures-a Compact Modal Formulation for Use in SEA Models • Silencers for Automobile and for Industrial Noise Control...the Main Ways of their Improving. Computer Aided Design of Automotive Air Conditioner Mufflers. Using TSA to Trend the Attenuation of an Installed Silencer. New Calculation Method to Locate Silencers and Catalyst Converters in a Car's Exhaust System. Multidimensional Effects on Silencer Performance. The Herschel-Venturi Tube. On Hydraulic Model of Conventional Helmholtz Resonator-Silencer Operating in High Intensity Noise Field. Active Control of Turbomachine Discrete Tones. Recent Trends in the Development of Active Sound and Vibration Control Systems. Causality Constraints of Adaptive Active Control Algorithms. Active Control of Axial Fan Noise From Office Equipment • The State of the Art of Active Passive Noise Control. A Numerical Investigation of Active Structural Acoustic Control in a Double Walled Cylinder. Structureborne Noise Reduction Using an Active Isolation Mount. Adaptive Active Vibration Control of Flexible Beam Structures. Geometric Compositions in the Design of Active Noise Control Systems. Selecting Numbers of 10 Noise/News International Transducers and Filter Lengths for Neutralized-Feedforward Active Noise Control. The Numerical Analysis For Active Structural Acoustic Control in an Aircraft Fuselage • Large-Scale, Broadband Sensor and Actuator Selection For Active Noise Control. When The Quiet Zone Needn't Be Quiet Separating Speech From Noise in Active Noise Control. Adaptive-Passive Vibration Control of Single Frequency Excitations As Applied to Noise Control. Adaptive Feedback Active Noise Control. Active Acoustic and Structural Acoustic Control of Car Cabin Noise Experimental Study on a Scale Model • Estimating Acoustic Radiation using Wavenumber Sensors. Broadband Wide-Area Active Control of Sound Radiated from Vibrating Structures Using Local Surface-Mounted Radiation Suppression Devices. Fixed-Point DSP Implementation of Active Noise Control Systems. Improvement of the Estimate of the Speaker-Error Microphone Transfer function in an Active Noise Controller. Adaptive-Passive Control of Structural Vibrations via Shunted Piezoelectric Materials with Adaptable Circuits • Active Control of Complex Noise Problems Using a Broadband, Multichannel Controller. An Active Control Procedure to Spatially Reduce the Noise Created by a Vibrating Panel into a Room • A Frequency Domain Multichannel Optimal Adaptive Algorithm for Active Control of Sound and Vibration. Analytical Investigation of Adaptive Control of Radiated Inlet Noise from Turbofan Engines • Adaptive Feedforward Control of Time Varying Structural Systems. Active Attenuation of Motor/Blower Noise. Performance Evaluation of Various Active Noise Control Algorithms • Control of Sound RadiationiReflection with Active Foams. Active Control of Interior Noise in a Business Aircraft Using Piezoceramic Actuators VIBRATION AND SHOCK: GENERATION, TRANSMISSION, ISOLATION, AND REDUCTION Random Vibration of Nonlinear Beams by the New Stochastic Linearization Technique. Stochastic Response of Multi-Span Beam to the Acoustic Field. Interval Analysis and Convex Modelling for Uncertainty Analysis in Structural Vibrations. Minimization of Radiated Sound Power Using External System Modeling. Design of a Prototype Acoustic Enclosure with One Flexible Wall for Use in Structure-Borne Noise Studies. Impedance Measurements in Transversely Vibrating Beams. Analytical, Numerical, and Experimental Comparisons for Structure-Borne Noise in a Rectangular Acoustic Enclosure. Vibrational Energy Distribution in Inhomogeneous Structures. Vibrational Waves Propagation Along Piping System Network. Application of the Mobility Power Flow Approach to a Fluid-loaded Shell Coupled to a Plate Bulkhead. Structural Power Flow Analysis Using Finite Element. The Application of the Wigner Distribution to Wave Type Identification in Finite Length Beams • Boundary Element Calculation of Transient 3-D Wave Propagation in Viscoelastic Solids • Structure-Borne Noise Predictions and Measurements on a Simple Truss Structure. Analysis ofTransmitted Vibration in aT-Beam Structure Using Component Modes. AT-Frame Structure for the Analysis of Structure-Borne Sound Transmission by Multi-Point and Multi-Component Excitation. Low Frequency (LF) Acoustic Testing of Boreholes Anomalies • Localization and Transmission Loss in Ribbed Plates. Experimental Studies of Vibrational Power Flow Through Slotted Beams. Assessment of Structural Intensity and Energy Flow in Multi-Source Environments by Means of 1994 March Singular Value Analysis. A Theoretical Analysis of Airborne Sound Transfer for a Resiliently Mounted Machine to its Foundation. Free Vibration of Stochastic Structures on Uncertain Elastic Foundation. Adaptive Tuned Vibration Absorbers: Tuning Laws; Tracking Agility; Sizing; and Physical Implementations. Virtual Sensors and Actuators for Incorporating Rotational Degrees of Freedom in Active Vibration Control. Broadband Active Vibration Control of a Beam Using Experimentally Obtained Impulse Functions. Prediction of Natural Frequency Variability due to Uncertainty in Material Properties. Effect of Constraining Layer Stiffness on Performance of Damping-Tile Materials Using Finite Element Modelling with Rayleigh Integral IMMISSION: PHYSICAL ASPECTS OF ENVIRONMENTAL NOISE Sound Insulation Programs: Serving Three Clients. 25 Years of Airport Sound Insulation Programs. Noise Control in Research Laboratory. Vibration Isolation for Noise Control in Residential HVAC Systems - A Case Study. Acoustic Performance ofan Air Conditioning System with a Diffusing Ceiling for Dwellings and Small Office Blocks • Acoustical Treatment of Ventilation Paths for Sound Insulation of Buildings. Identification of Noise Sources and Paths in a Hermetic Reciprocating Refrigeration Compressor via Multiple Input/Single Output Modeling. Residential Sound Insulation - A Quest for Quiet. Effects of Speed on Vehicle Sound Spectra. Noise Control along Interstate 95 in Broward and Palm Beach Counties • Application of a Large-Scale Sea Model to a Ship Noise Problem. The Active Control of Airborne Noise in a High Speed Patrol Craft. Noise Control on a Large Tractor Tug • Valve Noise on an Offshore Platform. Design of a Low Noise 46 MW Natural Gas Compressor Station. Noise Evaluation in Geothermal Installations • The Environmental Noise Surveys of Two Communities at China's City (Chongqing) IMMISSION: EFFECTS OF NOISE Recent Experience in the Use of Prominence Ratio for Rating Discrete Tones in Noise. The Biologically Active Acoustic Zones in the Conditions of Real Production. The Biologically Active Infrasound Zones • The Initial Link ofthe Infrasound and Man's Interaction Mechanism • An Experimental Study on the Sound Evaluation Based on the Compound Effect of Environmental Factors in a Room. Community Effects of Barriers. Objective and Subjective Evaluation of Equal and Unequal Exhaust System for V6 and V8 Engine Application. Using Artificial Neural Networks to Model Human Annoyance to Noise • Possibilities of Psychacoustics to Determine Sound Quality • Environmental Noise Criteria for Pure Tone Industrial Noise Sources. Assessing Effects of Military Aircraft Noise on Residential Property Values near Airbases • Integrating Noisemap with The Geographic Resources Analysis Support System (Grass) to Enhance Environmental Impact Assessments and Land Use Compatibility Studies. Room Criteria for Performance Facilities. Acoustical Properties of Fabric Roofs. Application of NCB and RC Noise Criterion Curves to Evaluation of Noise in Occupied Spaces. A Review and Revision of Acceptable Room Noise Levels. Low Frequency Noise Assessment - What Do We Know? 1994 March ANALYSIS Low-Noise Windscreen Design and Performance. Calibration of a Laser Vibrometer by Digital FM Demodulation (71 Instruments For Noise and Vibration Measurements) • Torsional Operational Deflection Shapes (TODS) Measurements • Comer Microphone Technique for Measuring Decay Rate in a Reverberation Room. Objective Acoustical Analysis of Room Acoustic Measurements in Portuguese Roman Catholic Churches • Estimation Theory and Experiment Using Digital Filter for Reverberation Curve with Unknown Initial State in Room Contaminated by Background Noise. Techniques for Interaural Cross Correlation Measurements • HC Rating of Tapping Machine Field Measurements. Design Problems of Test Reverberation Chamber for High Intensity Noise Field Simulation Construction. Computer Optimized Design ofa Reverberation Chamber. Time Series Modelling Techniques for Multivariate Correlation Analysis of Operating Response Data. Higher-Order Statistical Signal Processing Based on Wide Sense Digital Filters and its Application to State Estimation of Various Type Acoustic Environments. A Coupling Procedure for Modeling Acoustic Problems Using Finite Elements and Boundary Elements • Regression Analysis Based on the Introduction ofMultiplicative Noise and the Prediction of Response Probability Distribution for Acoustic Environmental Systems • VibroAcoustic Analysis of Manned Spacecraft using SEA. Probability Distribution of Mean-Squared Sound Pressure by Statistical Energy Analysis • Finite Element Modeling of Isotropic Elastic Porous Materials Coupled with Acoustical Finite Elements. A Coupled Structural - Acoustic Indirect Boundary Element Formulation with Unequal Mesh Capability between the Acoustic and the Structural Model • Application ofMulti-Domain BEM to Acoustic Analysis. A Refined Transient Boundary Element Model for Acoustic Modeling. Generalization of the Bolotin's Dynamic EdgeEffect Method for Vibration Analysis of Mindlin Plates. A Comparison ofMulti-ReferenceNearfield Acoustical Holography Procedures. Acoustical Holography in Spherical Coordinates for Noise Source Identification. Array Processing Requirements for the Measurement of Structure and Fluid Borne Propagation of Flow Noise in Pipes. Noise Modeling for MOS's and Ranges. Noise Modeling and Analysis Techniques of Aircraft Auxiliary Power Units. Determining the Effects of Alternative Departure Cutback Altitudes and Power Settings - A Case Study - John Wayne Airport • MOAMAP: Three-Dimensional Noise Modeling For Military Special Use Airspace (SUA) • The Present and Future of Aircraft Noise Models: A User's Perspective. INM Contour Validation -A Case Study. At Istanbul Atatork Airport Measurement and Analysis of Noise in Due of Take Off Time. Subjective Assessment of Spatial Impression. Effects of Various Architectural Parameters on Acoustical Measurement s in Rooms for Listening • First Steps in Rationalization ofRoom Acoustical Adaptation. Guidelines for Conducting Listening Tests on Sound Quality REQUIREMENTS Noise Criteria for Ships, Boats, and Offshore Platforms. Impact of Anticipated Changes in Mine Regulations on the Coal Mining Industry. Noise Reduction as a Requirement in Machine Specific Safety Standards • European Community Directives Relating to Noise • Are There Ways to Comply with the European Directive on Machinery Safety? • New Focus Needed for Noise Ordinances. Permitting Requirements for 24-hour Tunneling Construction Noise/News International 11 Feature Subiect Classification for Noise Control Engineering 1. Introduction Classification, according to the dictionary definition, is the arrangement of things in classes according to the characteristics they have in common. Here we are interested in the many different subjects encountered in the field of noise control engineering. Why classify them? International INCE and INCE/USA are concerned with technical publications: books, journals and proceedings. The principal reason for classification is to make the information in those technical publications retriev- 52.3 .. Road traffic noise able and hence available to those who need it. International INCE and INCE/USA are involved with the organization of conferences and congresses. A scheme or system (these two words will be used interchangeably here) to classify papers in noise control engineering is of great value to the organizers of these meetings. Once an invited or contributed paper is classified, its placement on the technical program and in the Proceedings for the meeting is greatly facilitated. The classification scheme to be described has been developed by and for practicing engineers. To date, librarians and other information professionals have not participated in its development. However, it may be useful to define what the INCE Classification of Subjects is, and what it isn't. To do so, it is necessary to use the terminology of information science. For those readers who are unfamiliar with the jargon of information science, certain basic definitions are given in the next section. Using these definitions, the INCE Classification of Subjects is a so-called "traditional" system! for classifying the subject content of documents, similar 12 Noise/News International to the Dewey Decimal Classification. A traditional scheme utilizes a deductive method for organizing knowledge in a systematic manner. Instead of arranging the subject headings alphabetically, the scheme is arranged hierarchically. Fields of noise control engineering are divided into broad categories; each category is subdivided; and the subcategories are subdivided. Each subdivision is called a level, and the process of subdivision may continue until there are four or more levels in the scheme. The advantages of the hierarchical scheme over 2 the alphabetical arrangement are twofold: • like subjects are grouped closely together and browsing up or down near any entry will reveal closely- related entries; • during searches by means of on-line bibliographic databases, the INCE subject classification code can be truncated at will to broaden the area of search. A disadvantage of the hierarchical scheme is the difficulty experienced by some users unfamiliar with the scheme in locating a particular term that they seek. In most cases, the desired subject can be found quickly by using the One-Page Summmary to locate the second level term; then the third and higher level terms can be found from the detailed classification of subjects. A traditional scheme usually is accompanied by a subject index with a cross-reference structure to assist in locating any subject in the classification system. Such indexes are usually in the form of an alphabetical list of subject headings. The index for the INCE Classification of Subjects has not yet been completed. As defined above, indexing is the process of assigning one or more subject classification numbers to a document involving a decision by the person doing the classifying. The author of the document is frequently asked to assist in this assignment. A detailed description of the classification process is described below in the section titled Indexing an Article. As a traditional scheme, the INCE Classification of Subjects has a controlled vocabulary. Other, more modern classification systems, such as the KWIC index with an uncontrolled vocabulary, were consid- 1994 March ered, but were not adopted. Also considered was the thesaurus approach with its controlled vocabulary. Many of the large engineering organizations, such as the Institute of Electrical and Electronic Engineers (IEEE), use their own thesauruses. The big advantage that INCE has over other organizations is its source-path-receiver model. None of the other classification systems considered, with either controlled or uncontrolled vocabularies, could fully exploit the advantages of the source-path-receiver model on which the INCE Classification of Subjects is based. 2. Basic Definitions of Information 1 Science Classification: An orderly arrangement of terms, developed by logical division of a subject by means of a series of characteristics. A hierarchical classification suggests the positioning of various terms in the chain going from the general to the specific. Descriptor, Term: A word or expression having a precise and unambiguous meaning. Subject Heading: A word or group of words embodying a subject under which entries for all works on that subject are to be found. Index: A systematic guide to items contained in a document or groups of documents. Indexing, Classifying: The process of analyzing the information content of a document and expressing this information in the language of the classification system. Controlled Vocabulary: A list of terms used in indexing, with rules prescribed for selecting terms and adding new terms. Uncontrolled Vocabulary: A vocabulary in which the terms are free of all constraints and information is identified and retrieved in the natural language of the authors. Information Retrieval: The recovery of desired information or data from an organized collection of information. Dewey Decimal Classification: Classification system developed by Melvil Dewey in 1876 and used extensively by U.S. libraries for the shelf arrangement of books. In Dewey's scheme, knowledge is divided into ten main classes, each with further subdivisions. Thesaurus: A list of subject headings or descriptors, usually alphabetical, with a cross-reference system for use in the organization of a collection of documents for reference and retrieval. Keyword in Context Index (KWIC): A rotated listing, usually of document titles, with each significant word in the title appearing in the appropriate alphabetical place in the display, surrounded by the remainder of the title. 1994 March 3. Early History of the INCE Classification of Subjects When INCE/USA was founded in 1971, one of the first tasks undertaken by the new organization was the preparation of a classification of subjects in noise control engineering. At the Arden House Workshops on Noise Control Engineering which played an important role in the early development of INCE/USA, there were discussions of the need for a scheme to classify subjects. The initial reasons for preparing a classification of subjects were to facilitate the structuring of the technical programs of conferences, and to make it easier to search for articles published in technical journals. An initial draft of a classification of subjects was prepared for discussion at the First Arden House Workshop. It was dated 1970-10-13. For convenience, this first draft was later identified as Version 0.0. During the formative years ofINCE/USA, there was little opportunity to expand or refine Version 0.0 which languished until the end of the decade of the 1970s, unpublished and unused. The theme of the 1980 International Conference on Noise Control Engineering (Miami, Florida, USA, 1980 December 08-10) was Noise Controlfor the 80s. In keeping with the theme, it was recognized that the Proceedings would be useful not only to the participants, but would also serve as a valuable reference for others who were not present at INTER-NOISE 80. In preparing the Proceedings, consideration was given both to the needs of the participants and to the ease with which papers could be located in the Proceedings subsequent to INTER-NOISE 80. It was decided that arranging the Proceedings volumes according to the sequential order of the technical sessions of INTERNOISE 80 was less important than an arrangement that would make it easier to locate individual papers when INTER-NOISE 80 technical sessions were but a hazy memory. Accordingly, for the fIrst time, papers were arranged in the Proceedings not in the order in which they were given during the technical sessions, but in accordance with the INCE/USA ClassifIcation of Subjects. It was appropriate to publish the classifIcation scheme for the fIrst time. A One-Page Summary of the ClassifIcation of Subjects was printed at the beginning of Volume 1 of the two-volume Proceedings of INTER-NOISE 80. This was version 0.1. 4. One-Page Summary The One-Page Summary, which has appeared in all subsequent INTER-NOISE Proceedings, shows that the classification scheme is based on the sourcepath-receiver model. There are 10 major sections in the scheme; the first level digits are 0 through 9. The first level digit is followed by a second level digit; the first and second level digits are not separated by Noise/News International 13 a period; all subsequent levels, which do not appear in the One-Page Summary, are separated by periods; see Appendix A. The first block of ten second level numbers (00 through 09) is for general subjects. Noise sources are included in the second and third blocks, the third also 13.7.1.6; Power shovels including propagation phenomena. The fourth block is devoted to noise control elements which are inserted in the transmission path. The sixth block covers the physical aspects of environmental noise at the receiver when multiple sources and multiple paths are present. The seventh block includes the effects of noise on the receiver. The eighth block is devoted to analysis techniques and the ninth block defines requirements for acceptable levels of noise. A separate section, the fifth block, covers those aspects of vibration and shock phenomena which are of importance to noise control engineers. 5. What's in Each Section of the Scheme? Few papers presented at NOISE-CON or INTERNOISE conferences or published in journal articles will have a single, unique classification number according to any scheme. It is therefore recommended that each paper or journal article should, if possible, be given at least two classification numbers which may be from different major sections or blocks. A. The General category (i.e., Section 00 with classification numbers 00 through 09) includes subjects of general interest. For convenience, the first classification number in each of the ten sections also covers general subjects. Categories 01-04 are devoted to the I-INCE Member Societies, listed in the chronological order in which they became Participating Members of International INCE. For convenience, the two-letter country code is given after the name of each I-INCE Member 14 Noise/News International Society. Intended for these categories are matters that relate to the individual I-INCE Member Societies, such as constitution and bylaws, history, publications, meetings, membership lists, activities of administrative and technical committees, prizes, medals and awards, regional chapters and obituaries. Category 05 includes publications other than technical articles. Category 06 is reserved for entries to the historical and philosophical literature. Category 07 covers education in noise control engineering and acoustics. Category 08 is for descriptions of noise programs which are undertaken by governmental or private organizations. Finally, category 09 is reserved for terminology, i.e., defmitions and descriptors. B. Section 10 (classification numbers 10 through 19) covers noise sources and noise generators. Category 11 is for papers that describe noise-generating devices and mechanisms which are discrete sources of sound, ranging in size from very small (e.g., electrical components) to large (e.g., internal combustion engines). Category 12 covers stationary equipment which generates noise; it may also be a mobile source producing noise when stationary. Category 13 includes all sources that are in motion when they are producing noise. Category 14 is for specialized industrial machinery and equipment. The industries in which this special machinery is used are classified according to the Special Industrial Code (SIC) whenever such a code is available. C. Section 20 (classification numbers 20 through 29) is intended for physical phenomena. Category 21 is devoted to basic, physical mechanisms that are responsible for the generation of sound. Category 22 includes natural sources of noise. The remaining categories in Section 20 are devoted to the propagation, transmission and scattering of sound outdoors, indoors and in ducts. D. Section 30 (classification numbers 30 through 39) is for noise control elements that are in the path between source and receiver for the purpose of noise control. Included are: barriers, enclosures, sound isolating elements, mufflers, absorptive materials, hearing protective devices, and duct attenuators. Category 38 covers special acoustical treatments, including papers in the field of active control of sound and vibration. E. Section 40 (classification numbers 40 through 49) covers those aspects of vibration and shock that are important to noise control engineering. Section 40 is not intended to be a comprehensive classifica- tion of all subjects related to shock and vibration. Those aspects that are not related to noise control are not included. F. Section 50 (classification numbers 50 through 59) is intended to cover the physical aspects of 1994 March environmental noise when there are many noise sources, many transmission paths and many receivers. Such conditions are typically found in buildings (51), in communities (52), in factories (53), and on shipboard (54). Noise surveys in communities and factories (category 56) are included in this section. G. Section 60 (classification numbers 60 through 69) deals with the effects of noise: sound perception (61), physiological (62), psychological (63), physical damage (64), on animals (65), community reaction to noise (66), and economic effects (67). The section concludes with classification numbers devoted to environmental impact statements (68) and noise criteria (69). H. Section 70 (classification numbers 70 through 79) is devoted to analyses of all kinds, including the instruments needed to perform such analyses (71) and the techniques for physical measurements (72), test facilities for experimental analyses (73), signal processing (74), analytical methods (75) such as Statistical Energy Analysis (SEA), Finite Element Method (FEM) and Boundary Element Method (BEM), as well as modeling, prediction and simulation (76). At the end of the section are two categories for hearing acuity (78) and psychoacoustical evaluations (79) 1. Finally, Section 80 (classification numbers 80 through 90) covers all sorts of requirements including those that are prescribed by Standards (81), by legislation (82, 83 and 84), by ordinances (85), by building codes (86), and by specifications (87). The final two categories are devoted to auditing, enforcement and certification (88) and to labeling (89). papers. Indeed, it is intended that the scheme be useful whenever it is desirable or necessary to classify papers in the field of noise control engineering for any purpose. In 1987, the Long-Range Planning Committee of INCE/USA circulated the classification scheme to several other professional societies in the U.S.A. for comments and suggestions. This Version 3.0 was not published. In making this circulation, it was emphasized that INCE/USA had no interest in imposing its classification scheme on other organizations or in including categories not noise-related. Further, it was pointed out that INCE/USA did not intend to classify papers on topics in mechanical engineering, aeroacoustics, vibration engineering, and other fields that are unrelated to noise. Indeed, it was emphasized that the INCE/USA classification scheme is for papers dealing with noise and very closely related subjects, and is not a universal classification system. Responses from the other professional organizations led to the conclusion that they had limited interest in a detailed classification scheme restricted to the subject of noise. Following the publication of Version 2.0 in the 1985 July-August issue of Noise Control Engineering Journal, the practice of publishing the One-Page Summary in the INTERNOISE Proceedings has been continued, but the detailed scheme has not been republished until now. In the interim, a number of relatively minor modifications has been made, and the scheme published here is Version 6.0. 6. Publication of the Detailed Scheme 7. Internationalization of the Classification Scheme The One-Page Summary is useful for locating the broad categories in which a paper may be found, but it does not provide sufficient infmmation for the editor involved in the preparation of an INTER-NOISE Proceedings who requires more than a summary in order to properly classify papers. Since 1979, the classification scheme has undergone revisions and expansions. Version 0.1 was used for classifying the papers for INTER-NOISE 80. Version 0.2 was used to classify papers for INTER-NOISE 82. The first publication of the detailed classification scheme was in Noise/News (vol. 12, no. 4, 1983 July-August). This was Version 1.0. The second publication of the detailed scheme occurred two years later when Noise Control Engineering Journal (NCEl) (vol. 25, no. 1, 1985 July-August) presented a subject index which listed the titles of all articles that had appeared in NCEJ during the years 1973 to 1984 according to the INCE/USA Classification of Subjects (Version 2.0). The publication in NCEJ demonstrated the usefulness of the scheme for classifying journal articles as well as INTER-NOISE 1994 March Upon the recommendation ofINCE/USALong-Range Planning Committee (LRPC) in 1987 following the circulation of Version 3.0 to the U.S. professional societies for comments, responsibility for maintenance, revision and updating of the Classification of Subjects was transferred to International INCE. The LRPC considered it to be a matter of great importance that the classification scheme be internationalized, and International INCE was in the best position to provide worldwide inputs on the process of updating and expanding the scheme, which. after 1987. has been identified as the I-INCE Classification ofSubjects in Noise Control Engineering. 8. Comments by Kari Pesonen Consulting Engineers For the past several years, Kari Pesonen Consulting Engineers Ltd. (KPCE), Kristianink. 11-13 B, SF00170 Helsinki, Finland has been using an extended classification code which was based on Version 2.0 published in Noise Control Engineering Journal Noise/News International 15 (1985). In discussions with the Finnish organization, a number of important points have been raised. First, KPCE noted that Version 2.0 is not complete enough for indexing all documents that are needed in a professional noise-control-engineering consulting practice. Nearly all organizations dealing with noise control need to index and file acoustical and engineering documents that are not noise related. Consider, for example, the design of silencers for process plants. The noise control engineer needs a great deal of information, much of it not noise related, e.g., on process dynamics, materials for thermal insulation, materials and methods for corrosion control, pressure vessel codes, technical data sheets on prefabricated parts and fittings, mechanical standards, etc. It is not I-INCE's responsibility to include such topics in the I-INCE classification scheme. However, to encourage organizations to adopt and use the I-INCE scheme, the indexing code must be expandable to fit local requirements. Thus, it is important to leave open numbers to provide access points (numbers on which to start expanded indexing) in the I-INCE classification scheme for users to add their own special codes. Such open numbers should not interfere with future alterations and expansions of the I-INCE classification scheme, but I-INCE should inform users of these open numbers or "hooks" which are available for the user to cover special and non-noise related subjects. These open numbers would not be supported by I-INCE and would be maintained by each user of the I-INCE scheme. Future changes and alterations to the 1INCE classification scheme will not interfere with any users' extensions. To meet this important requirement, I-INCE agreed that those classification numbers with zero on the third level (e.g., 12.0) will not be used by I-INCE. Thus, all classification numbers following a zero on the third level would be available for user-tailored codes which will not appear in the I-INCE Classification of Subjects. To distinguish between the I-INCE classification scheme and usertailored subjects, it is recommended that user-tailored codes start with a letter rather than a number. By permitting user-tailored entries in the I-INCE classification scheme, interchangeability between databases is assured. Further, provision has been made for the inclusion of a country code in the classification scheme. While a country code could be used with any category of the scheme, it is particularly convenient for the following: 05.7,06,07,08,81.1,81.9,82,83,84,85 and 86. When an ISO country code designator is used, it should be placed after the classification number in parentheses. For example, Category 05.7 is Patents. As a document may be classified as a German patent by assigning it 16 Noise/News International the classification number 5.7(DE). Such a designation would facilitate the search through databases for such a national document. Second, KPCE noted that the I-INCE classification scheme should be easily adapted to and used with popular database programs. To meet this requirement, I-INCE maintains the I-INCE Classification of Subjects on 5.25-inch and 3.5-inch diskettes as an ASCII file formatted in MS-DOS. The file can be read and imported into a variety of word processing programs. Third, KPCE pointed out that care must be exercised in prescribing the number of digits between two periods in the classification code. This is important when we consider the use of the classification code with available general-purpose databases. All database programs should be able to search multiperiod codes in a similar fashion. To satisfy this requirement, I-INCE has restricted the code to one digit between periods for each level, except there is no period between the first and second levels. This requirement allows database programs that perform column sorts to sort the information in the database according to the subject classification scheme. 9. Other Classification Schemes There are a number of other classification schemes which cover aspects of noise and its control. Perhaps the best known is the Physics and Astronomy Classification Scheme (PACS) which is used by the Acoustical Society of Americl. Section 43 ofPACS is devoted to acoustics. Between categories 43.05 and 43.88, the field of acoustics is divided into more than 20 sub-sections. The subjects related to noise, its effects and control, are itemized in PACS 43.50 with 15 sub-sub-sections starting with 43.50.Ba, "Noisiness: rating methods and criteria" and ending with 43.50.Yw, "Instrumentation and techniques for noise measurement." This scheme was not considered suitable for adoption by INCE as it contains only 15 sub-sub-sections not arranged using the source-path-receiver model. Further, the scheme mixes digits and letters. An all-numerical scheme was preferred. A number of commercial firms maintain their own databases that cover noise control engineering. An example is the classification scheme developed and used by DNV Ingemansson AB, Gothenburg, Sweden. That scheme also covers the entire field of acoustics, and is not specialized to noise control engineering. 1O. Classifying an Article Consider now a specific example - to fmd the principal INCE classification code for the following article: 1994 March 10.1 Noise Reduction of a Dot Matrix Printer Yoji Okazaki and Yumio Nitta, Toshiba R&D Center, 4-1 Ukishima-cho, Kawasaki-ku, Kawasaki,Japan When selecting an INCE classification code for an article, the author or classifier must make a judgment of the principal topics covered by the paper. The author/classifier consults the One-Page Summary and finds the 2-digit first and second level Classification Number. 12 Stationary noise sources The author/classifier consults the detailed scheme and finds the third-level code: 12.3 Computers and business equipment Continuing the search, the following fourth-level code is located: 12.3.4 Computer equipment And then the fifth-level code: 12.3.4.3 Input-output devices And finally the sixth-level code: 12.3.4.3.4 Line and character printers This sixth-level code is the principal INCE classification for the article. It is desirable to assign secondary or alternative code to each article that is classified. In this example, the article deals with printers and the major noise source is the printing element; so, following a similar procedure to that above, the secondary code for this fourth-level article would be: 12.3.1.1 Printing elements Each article should have at least two INCE subject classification codes. It is usually unnecessary to provide more than two classification codes. 11. Future Uses of I-INCE Classification of Subiects Plans are in progress for INCE/USA to undertake a leadership role in establishing a database of contemporary papers on noise and closely related subjects. This database will include the titles of all papers appearing in Noise Control Engineering Journal, the Proceedings of INTER-NOISE Congresses and the Proceedings of NOISE-CON Conferences (the na1994 March tional meetings of INCE/USA). In addition, the database would include titles from other sources (proceedings and journals). At the present time, the Board of Directors of INCE/USA is considering appropriate file formats and methods of distribution. The key point is that the construction and use of such a database can only be successful if a single, uniform scheme of classification is adopted. It is proposed that such a contemporary literature database be prepared for each calendar year and be organized according to the I-INCE Classification of Subjects. The database would be available on diskette in a standardized format. At the end of each year, after all issues of journals and proceedings for that year have been published, the database would be printed in hard copy, and published in Noise/News International. After several years, databases could be consolidated and organized by subject classification to form five-year, ten-years indices, etc. For the database to function effectively, not only is a uniform classification of subjects required, but also a common data format for computer input. Readers of NNI will note that the Government Reports department contains lists of government reports. While only the most recent reports have been classified, there is a repository of abstracts of nearly 3500 such reports - dating from the early 1970s - which have not yet been classified. 12. Questionnaire Although no subject classification scheme is perfect, classification is important to librarians, researchers, consultants and others who have a need to establish a rational system for indexing publications. A questionnaire appears in appendix C at the end of this article. Many noise control engineers may acknowledge the importance of having a classification scheme, but the extent to which individuals wish to influence the construction of any classification scheme is currently unknown. If you, the reader, are interested in classifying papers, please take time to respond to the short questionnaire on page 25 of this issue. 13. References 1. "Indexing and Searching in Perspective," Everett H. Brenner and Tefko Saracevic, National Federation of Abstracting and Information Services, 112 South Sixteenth Street, Philadelphia, PA 19102, USA, 1985. 2. "Physics and Astronomy Classification Scheme 1993," AlP PUB R-251.11, American Institute of Physics, 500 Sunnyside Boulevard, Woodbury, NY 11797, USA, 1993. Appendix A One-Page Summary of the I-INCE Subject Classification Noise/News International 17 GENERAL 00 01 02 03 04 05 06 07 08 09 General International INCE International INCE (continued) International INCE (continued) International INCE (continued) Publications (other than technical articles) History and philosophy Education Noise programs Definitions and descriptors EMISSION: NOISE SOURCES (noise generation and control) 10 11 12 13 14 General Noise-generating devices (including components and subassemblies) Stationary noise sources Moving noise sources Specialized industrial machinery and equipment PHYSICAL PHENOMENA 20 21 22 23 24 25 26 General Physical mechanisms of noise generation Natural sources of noise Propagation, transmission & scattering of sound (general wave equation) Sound propagation in the atmosphere Sound propagation in enclosed spaces Sound propagation in ducts NOISE CONTROL ELEMENTS (for path noise control) 30 31 32 33 34 35 36 37 38 General Barriers and screens, shielding Enclosures for noise sources Sound isolating elements (including panels, partitions and curtains) Filters, muffiers, silencers and resonators (conventional types) Absorptive materials Hearing protective devices Noise attenuation and transmission in ducts Special treatments (including active noise control) 54 55 56 Shipboard and offshore platform noise control Outdoor plant noise control design and construction Noise surveys IMMISSION: EFFECTS OF NOISE 60 61 62 63 64 65 66 67 68 69 General Perception of sound Physiological effects Psychological effects Effects of noise on physical structures Effects of noise on domesticated and wild animals Sociological effects; community reaction to noise Economic effects Environmental impact statements Criteria and rating of noise ANALYSIS 70 71 72 73 74 75 76 77 78 79 General Instruments for noise and vibration measurements Measurement techniques Test facilities (design and qualification) Signal processing Analytical methods Modeling, prediction and simulation Sampling and quality control procedures Audiometry, dosimetry and hearing measurements Psychoacoustical evaluations and testing REQUIREMENTS 80 81 82 83 84 85 86 87 88 89 General Standards Federal government legislation and regulations State and local legislation and regulations Other legislation and regulations Ordinances, including zoning requirements Building codes Specifications Auditing, enforcement and certification Labeling RESERVED FOR FUTURE EXPANSION 90 - 99 Appendix B Detailed Classification of Subjects VIBRATION AND SHOCK: GENERATION, TRANSMISSION, ISOLATION AND REDUCTION 40 41 42 43 44 45 46 47 48 49 General Characteristics of sources of vibration and shock Vibrating surfaces and structures (beams, plates, shells) Propagation in structures (solid-borne noise) Balancing of rotating and reciprocating machines Reduction of impact forces; shock isolation and absorption Vibration isolators and attenuators Vibration-damping materials and structures Vibration generators, shake tables Effects of vibration and mechanical shock (on man, on structures) IMMISSION: PHYSICAL ASPECTS OF ENVIRONMENTAL NOISE (multiple sources and multiple paths) 50 General 51 Building noise control 52 Community noise control 53 In-plant noise control 18 Noise/News International For convenience, the country codes of the International INCE Member Societies are given in sections 01-04 of the classification. GENERAL 00 01 General International INCE 01.1 INCE/USA (US) 01.2 Acoustical Society of Denmark (DK) 01.3 Acoustical Society of Norway (NO) 01.4 Acoustical Society of Japan (JP) 01.5 Schweizerische Gesellschaft fuer Akustik (CH) 01.6 Acoustical Society of America (US) 01.7 Normenauschuss Akustik, Laermminderung & Schwingungstechnik (DE) 01.8 South African Acoustics Institute (ZA) 01.9 Australian Acoustical Society (AU) 02 International INCE (continued) 02.1 The Institute of Noise Control Engineering of Japan (JP) 03.2 Nederlands Akoestisch Genootshap (NL) 1994 March 03 04 05 06 07 08 09 02.3 Committee on Acoustics of the Polish Academy of Sciences (PL) 02.4 Canadian Acoustical Association (CA) 02.5 Acoustical Commission of the Hungarian Academy of Sciences (HU) 02.6 Association Belge des Acousticiens (BE) 02.7 Acoustical Commission of the Romanian Academy of Sciences (RO) 02.8 Acoustical Society of Sweden (SE) 02.9 Institute of Acoustics, United Kingdom (GB) International INCE (continued) 03.1 Acoustical Society of China (CN) 03.2 Acoustical Society of Finland (PI) 03.3 Acoustical Society of Korea (KR) 03.4 Associazione Italiana di Acoustica (IT) 03.5 Osterreichischer Arbeitsring fuer Laermbekaempfung (AT) 03.6 Noise Section, Environmental Engineering Society Singapore (SG) 03.7 Groupe Acoustique Industrielle et Environnement (FR) 03.8 Sociedade Brasileira de Acustica (BR) 03.9 New Zealand Acoustical Society (NZ) International INCE (continued) 04.1 Hungarian Society for Optics, Acoustics and Filmtechnics (HU) 04.2 East European Acoustical Association 04.3 Deutche Gesellschaft fuer Akustik (DE) 04.4 Lithuanian Acoustical Society Publications (other than technical articles) 05.1 Books 05.2 Book reviews 05.3 Editorials 05.4 Announcements and calendars 05.5 Biographical and personal notes 05.6 Bibliographies 05.7 Patents 05.8 Errata and addenda History and philosophy Education Noise programs 08.1 Federal governments 08.2 State governments 08.3 Local governments 08.4 Universities 08.5 Industries 08.6 Trade associations Definitions and descriptors EMISSION: NOISE SOURCES (Noise generation and control) 10 General 11 Noise-generating devices (including components and subassemblies) 11.1 Mechanical devices (noise generated mechanically) I1.Ll Bearings 11.1.2 Cams 1Ll.3 Gears 1Ll.4 Belts and belt pulleys 11.1.5 Drive trains 11.1.6 Stepping mechanisms lLl.7 Clutches 11.1.8 Actuators 11.1.9 Chains 11.2 Electrical elements (noise generated electrically) 11.2.1 Resistors, capacitors, inductors, diodes 11.2.2 Transformers 11.2.3 Ballasts 1994 March 11.2.4 Solenoids 11.2.5 Switches 11.2.6 Circuit breakers 11.3 Hydraulic/pneumatic elements 11.3.1 Valves 11.3.2 Orifices and nozzles 11.3.3 Piping 11.4 Air-moving and distribution devices 11.4.1 Axial fans 11.4.2 Centrifugal blowers 11.4.3 Mixed-flow devices 11.4.4 Diffusers and grilles 11.4.5 Dampers 11.5 Electric power devices 11.5.1 Electric motors 11.5.2 Electric generators 11.5.3 Power supplies 11.6 Other power devices 11.6.1 Air motors 11.6.2 Compressors (air, gas, vapor) 11.6.2.1 Piston compressors 11.6.2.2 Centrifugal compressors, turbocompressors 11.6.2.3 Volumetric blowers 11.6.3 Pumps (oil, water, other liquids) 1.6.3.1 Gear pumps 11.6.3.2 Vane pumps 11.6.3.3 Screw pumps 11.6.3.4 Piston pumps (reciprocating and rotary) 11.6.4 Engines 11.6.4.1 Internal combustion, diesel 11.6.4.2 Internal combustion, gasoline 11.6.5 Gas turbines 11.6.6 Power transmissions II.7 Rolling contact noise sources 11.7.1 Tires and road-tire interactions 11.7.2 Metal wheels and wheel-rail interactions 11.7.3 Rollers 11.8 Stick-slip motional noise sources 11.8.1 Brake squeal 11.8.2 Clutch squeal 11.8.9 Other friction squeal sources 11.9 Signaling devices 11.9.1 Bells 11.9.2 Horns 11.9.3 Whistles 11.9.4 Sirens 11.9.5 Fog horns 11.9.6 Impulsive devices 11.9.9 Other warning devices 12 Stationary noise sources 12.1 Large equipment (indoor and outdoor; major source dimension greater than I meter) 12.1.1 Electric power transformers 12.1.2 Cooling towers and heat exchangers 12.1.3 Chillers 12.1.4 Motors and generators 2.1.5 Primary power sources (diesel engines, gas turbines) 12.1.6 Furnaces, burners, boilers and incinerators 12.1.7 Stacks and flares 12.1.8 Large rotating electrical equipment 12.2 Construction and demolition equipment (stationary) 12.2.1 Pneumatic and hydraulic tools 12.2.1.1 Pavement breakers 12.2.1.2 Rock drills 12.2.2 Air compressors 12.2.3 Pile drivers 12.2.4 Concrete mixers 12.2.5 Space heaters Noise/News International 19 12.2.6 Wood chippers 12.3 Computers and business equipment 12.3.1 Subassemblies 12.3.1.1 Printing elements 12.3.1.2 Punches 12.3.1.3 Stackers 12.3.1.4 Keyboards 12.3.2 Typewriters and word processing equipment 12.3.3 Office and business equipment 12.3.3.1 Copiers and duplicators 12.3.3.2 Accounting and bookkeeping machines 12.3.3.3 Adding and calculating machines 12.3.3.4 Tabulating machines 12.3.3.5 Cash registers and check-out systems 12.3.4 Computer equipment 12.3.4.1 Digital computers 12.3.4.2 Central processing units 12.3.4.3 Input-output devices 12.3.4.3.1 Disk and drum drives 12.3.4.3.2 Tape Transports 12.3.4.3.3 Paper tape &card readers, punches 12.3.4.3.4 Line and character printers 12.3.4.3.5 Displays, monitors and terminals 12.3.4.3.6 Plotters 12.3.5 Commercial heating and ventilating equipment 12.3.5.1 Electric heaters 12.3.5.2 Gas-fued heaters 12.3.5.3 Window fans 12.3.5.4 Exhaust fans 12.3.5.5 Oil-fired furnaces 12.3.5.6 Gas-fired furnaces 12.3.5.7 Heat pumps 12.4 Home appliances and small equipment 12.4.1 Radio, television and high fidelity 12.4.2 Room air conditioners, humidifiers &dehumidifiers 12.4.2.1 Outdoor (unitary) airconditioning units 12.4.2.1.1 Compressors 12.4.2.1.2 Fans 12.4.3 Home heating and ventilating equipment 12.4.3.1 Electric heaters 12.4.3.2 Floor fans 12.4.3.3 Window fans 12.4.3.4 Exhaust fans 12.4.3.5 Oil-fired furnaces 12.4.3.6 Gas-fired furnaces 12.4.3.7 Heat pumps 12.4.4 Vacuum cleaners & powered cleaning equipment 12.4.5 Small appliances and housewares 12.4.5.1 Mixers 12.4.5.2 Blenders and juicers 12.4.5.3 Grinders 12.4.5.4 Knives and slicers 12.4.5.5 Ice crushers 12.4.5.6 Can openers 12.4.5.7 Electric sharpeners 12.4.5.7.1 Knives 12.4.5.7.2 Pencils 12.4.5.8 Sewing machines 12.4.5.9 Floor polishers 12.4.6 Major appliances 12.4.6.1 Refrigerators 12.4.6.2 Freezers 12.4.6.3 Clothes washers 12.4.6.4 Clothes dryers 12.4.6.5 Dishwashers 12.4.6.6 Garbage grinders 12.4.6.7 Range hoods 12.4.6.8 Trash compactors 20 NoiselNews International 12.4.7 Personal equipment - electrically powered 12.4.7.1 Shavers 12.4.7.2 Hair grooming devices 12.4.7.3 Shoe polishers 12.4.7.4 Toothbrushes 12.4.7.5 Massagers and exercise machines 12.4.8 Plumbing equipment and fixtures 12.4.9 Cameras and projectors 12.5 Power tools 12.5.1 Portable power tools (gasoline, electric or air power) 12.5.1.1 Chain saws 12.5.1.2 Drills 12.5.1.3 Saws 12.5.1.4 Stud drivers 12.5.1.5 Cutting torches 12.5.1.6 Welders 12.5.1.7 Other hand tools 12.5.2 Stationary power tools 12.5.2.1 Punch presses 12.5.2.2 Saws 12.5.2.3 Drills 12.5.2.9 Other workshop tools 12.6 Vibratory equipment 12.6.1 Feeders 12.6.2 Shakers and shake-outs 12.6.3 Conveyors 12.6.4 Hopper vibrators 12.6.5 Concrete vibrators 12.7 Truck-mounted equipment 12.7.1 Solid waste compactors 12.7.2 Refrigeration units 12.7.3 Air compressors 12.8 Equipment for transporting materials 12.8.1 Conveyors 12.9 Equipment for recreational areas and sports 12.9.1 Amusement park equipment 12.9.2 Ski area equipment 12.9.3 Equipment for sound amplification 12.9.4 Auxiliary power units for RV's and motor homes 12.9.5 Swimming pool filter pumps 13 Moving noise sources 13.1 Aircraft 13.1.1 Subsonic aircraft (fixed wing) 13.1.2 Supersonic aircraft 13.1.3 CTOL, VTOL, and STOL aircraft 13.1.4 Helicopters 13.1.4.1 Main rotor 13.1.4.2 Tail rotor 13.1.4.3 Engines 13.1.5 Sources of external aircraft noise 13.1.5.1 Fan and compressor stages 13.1.5.2 Turbine stages 13.1.5.3 Combustion stages 13.1.5.4 Jet-exhaust flows 13.1.5.5 Propellers 13.1.5.6 Internal combustion (piston engines) 13.1.5.7 Airframes 13.1.6 Aircraft interior noise 13.2 Highway vehicles 13.2.1 Automobiles 13.2.2 Motorcycles 13.2.3 Buses 13.2.4 Trucks 13.2.5 Recreational vehicles 13.2.6 Snow plows and snow removal equipment 13.3 Off-road vehicles 13.3.1 Snowmobiles 13.3.2 All terrain vehicles 1994 March 13.3.3 Motorcycles 13.3.4 Snow cats 13.3.5 Modified automobiles 13.3.6 Racing vehicles 13.4 Railbound vehicles 13.4.1 Railway trains (locomotives, coaches, freight cars) 13.4.2 Underground and elevated trains 13.4.3 Street rail vehicles (streetcars, trams, etc.) 13.4.4 Monorails 13.5 Ships and marine vehicles 13.5.1 Craft for inland waterways, including pleasure boats 13.5.1.1 Outboard engines 13.5.1.2 Inboard engines 13.5.2 Transoceanic vessels 13.5.3 Recreational water craft 13.5.4 Hovercraft, hydrofoils, and surface effect vehicles 13.6 Small engine-powered equipment 13.6.1 Lawn mowers 13.6.2 Agricultural and garden care equipment 13.6.2.1 Garden tractors 13.6.2.2 Tillers 13.6.2.3 Motorized turf care equipment 13.6.3 Snow blowers 13.6.4 Leaf blowers 13.6.5 Shredders/grinders 13.6.6 Log splitters 13.6.7 Electric-powered equipment 13.6.7.1 Edgers 13.6.7.2 Hedge clippers 13.6.7.3 Trimmers 13.7 Large engine-powered mobile equipment (non-highway) 13.7.1 Construction and earth-moving equipment 13.7.1.1 Bulldozers 13.7.1.2 Graders 13.7.1.3 Backhoes 13.7.1.4 Rollers 13.7.1.5 Scrapers 13.7.1.6 Power shovels 13.7.1.7 Pavers 3.7.1.8 Tractors (not used for farming) 13.7.2 Materials handling equipment 13.7.2.1 Loaders 13.7.2.2 Cranes 13.7.2.3 Forklift trucks 13.8 Sources inside moving vehicles, including ships & aircraft 14 14.2.5 Machinery - except electric (SIC 35) 14.2.6 Electrical machinery (SIC 36) 14.2.7 Transportation equipment (SIC 37) 14.2.8 Food products (SIC 20) 14.2.9 Rubber and plastic products (SIC 30) 14.3 Mining and quarrying equipment 14.3.1 Surface operations 14.3.2 Underground operations 14.4 Farming machinery 14.4.1 Threshing machines 14.4.2 Harvesting equipment 14.4.3 Milking equipment 14.4.4 Conveyors, pneumatic transporters 14.4.5 Dryers (hay, corn etc) 14.4.6 Heaters 14.4.7 Farm tractors 14.5 Power generation and transmission (SIC 49) 14.5.1 Electrical transmission lines and equipment 14.5.2 Natural gas transmission equipment 14.5.3 Power station equipment 14.5.4 Wind turbines and wind farms 14.6 Automated assembly and manufacturing equipment 14.6.1 Welding robots 14.6.2 Painting robots PHYSICAL PHENOMENA 20 21 21.1 Theoretical sound sources 21.1.1 Monopoles 21.1.2 Dipoles 21.1.3 Quadrupoles 21.1.4 Other multipoles 21.2 Noise produced by solid bodies 21.2.1 Vibrating bodies 21.2.2 Contacting bodies impulsive sounds 21.2.3 Sliding bodies 21.3 Rapid changes in temperature and/or pressure 21.3.1 Explosions 21.3.2 Combustion 21.3.3 Cavitation 21.3.4 Blast waves 21.4 Resonance, standing waves and normal modes (also 25.1) 21.4.1 Vibrating air columns (one-dimensional) 21.5 Interaction of a moving solid with a fluid 21.5.1 Movement of solid body through fluid 21.6 Flow noise, aerodynamic sound 21.6.1 Produced by jets 21.6.2 Blade slap and blade-vortex interactions 21.6.3 Blade vortex interactions 21.6.4 Produced by turbulence; ingestion and boundary layers 21.6.5 Produced by fluid-boundary interactions 21.6.6 Flow-induced noise generation in ducts & pipes 21.6.7 Supersonic flow, shock waves, sonic booms 21.6.8 Nonlinear effects 21.6.9 Cavities 21.7 Vibration excitation by mechanical & electrical sources Specialized industrial machinery and equipment 14.1 Machinery used in manufacturing industries 14.1.1 Tobacco processing (SIC 21) 14.1.2 Textile mills (SIC 22) 14.1.2.1 Looms 14.1.2.2 Spinning 14.1.2.3 Twisting 14.1.2.4 Winding 14.1.2.5 Knitting 14.1.2.9 Other 14.1.3 Apparel and related products (SIC 23) 14.1.4 Lumber and wood products (SIC 24) 14.1.5 Furniture and fixtures (SIC 25) 14.1.6 Paper and allied products (SIC 26) 14.1.7 Printing and publishing (SIC 27) 14.1.8 Chemicals and allied products (SIC 28) 14.1.9 Petroleum and coal products (SIC 29) 14.2 Machinery used in manufacturing industries (cont'd) 14.2.1 Leather and leather products (SIC 31) 14.2.2 Stone, clay and glass products (SIC 32) 14.2.3 Primary metals (SIC 33) 14.2.4 Fabricated metal products (SIC 34) 1994 March General Physical mechanisms of noise generation 22 Natural sources of noise 22.1 22.2 22.3 22.4 22.5 22.6 Rain storms, including thunderstorms Waterfalls and streams Wind Waves Surf Animate sources 22.6.1 Birds 22.6.2 Insects Noise/News International 21 23 24 25 26 22.6.3 Barking dogs 22.7 Other Propagation, transmission & scattering of sound (general wave equation) 23.1 Radiating surfaces 23.2 Reflection and echoes 23.3 Refraction and focusing 23.4 Diffraction 23.5 Interference 23.6 Scattering 23.7 Reverberation 23.8 Directivity 23.9 Transmission Sound propagation in the atmosphere 24.1 Divergence decrease 24.2 Absorption (attenuation) of sound in air 24.3 Effects of fog and precipitation 24.4 Reflection by and diffraction around obstacles 24.5 Topographical factors; effects of grass, shrubs & trees 24.6 Meteorogical factors; effects of wind, temperature and humidity 24.7 Scattering by small-scale temperature & wind variations 24.8 Reflection and absorption at small angles over a ground surface 24.9 Effects ofground impedance and height above round level Sound propagation in enclosed spaces 25.1 Standing waves and normal modes 25.2 Steady-state response 25.3 Diffusivity 25.4 Reverberation and echoes 25.5 Decrease with distance from the source Sound Propagation in ducts 26.1 General theory of propagation in ducts 26.1.1 Without fluid flow 26.1.2 With fluid flow 26.1.3 With hard, non-absorbing surfaces 26.1.4 With absorptive surfaces 26.2 Radiation from duct terminations NOISE CONTROL ELEMENTS (for path noise control) 30 31 32 33 34 35 22 General Barriers and screens, shielding 31.1 Outdoors 31.2 Partial-height partitions indoors 31.2.1 Barriers in industrial halls 31.2.2 Barriers in open-plan offices Enclosures for noise sources 32.1 Sound absorptive materials in enclosures 32.2 Wall construction 32.3 Isolation of plumbing and other wall penetrations 32.4 Ventilation openings 32.5 Doors and access openings 32.6 Windows Sound isolating elements (including panels, partitions and curtains) Filters, mufflers, silencers and resonators (conventional types) 34.1 Dissipative type 34.2 Reactive type 34.3 Helmholtz resonators Absorptive materials 35.1 Mechanisms of absorption - theory 35.2 Physical properties 35.2.1 Bulk sound absorption coefficient 35.2.2 Acoustic impedance 35.2.3 Flow resistance; effect of airflow rate 35.2.4 Density NoiselNews International 35.2.5 Porosity 35.2.6 Elasticity of structures 35.2.7 Propagation constants 35.2.8 Structure factor 35.2.9 Non-acoustical properties 35.3 Commercial acoustical materials 35.4 Common materials 35.4.1 General building materials 35.4.2 Furnishings and chairs 35.4.3 Audience and individual persons 35.4.4 Floor coverings 35.4.5 Sprayed mineral fibers 35.5 Materials for special applications 35.5.1 Exposed to high temperatures (flame retardant) 35.5.2 Exposed to high gas velocities 35.5.3 Exposed to severe weather conditions 35.5.4 Surface treatments for anechoic chambers 35.5.5 Roadway materials 35.6 Perforated facings for absorptive materials 35.7 Resonant absorbers 35.8 Wrappings and lagging materials 36 Hearing protective devices 36.1 Earmuffs 36.2 Ear plugs 36.3 Helmets 36.4 Active noise reduction in protective devices 37 Noise attenuation and transmission in ducts 37.1 Lined ducts 37.2 Unlined ducts 37.3 Plenums 37.4 Area changes, bends and elbows 37.5 Transmission through duct walls 37.6 Duct attenuators 37.7 Active noise control in ducts 38 Special treatments 38.1 Noise control by masking 38.2 Active noise control (three dimensions) 38.3 Active vibration control for noise reduction 38.4 Noise control by operational changes 38.4.1 Traffic control 38.4.2 Routing and scheduling control 38.5 Change of configuration or design for noise control purposes 38.6 Seals for openings 38.6.1 Absorptive seals (absorptive linings around openings) 38.6.2 Sealing cements, plastic & rubber mastics, foams, etc. 38.6.3 Sealing tapes and caulking materials 38.6.4 Foam and rubber ribbons and profiles VIBRATION AND SHOCK: GENERATION, TRANSMISSION, ISOLATION & REDUCTION 40 41 General Characteristics of sources of vibration and shock 41.1 Periodic vibration, sinusoidal 41.2 Stationary random vibration 41.3 Transients and shocks, impacts 41.4 Non-stationary random vibration 41.5 Nonlinear vibrations 42 Vibrating surfaces and structures (beams, plates, shells) 43 Propagation in structures (solid-borne noise) 43.1 Decrease due to spreading 43.2 Transmission and attenuation in solid structures 43.2.1 Mechanical constructions (internal damping) 43.2.2 Buildings, civil engineering constructions 43.2.3 Earth (geoacoustics) 43.2.4 Foundations/soil interactions 1994 March 44 45 46 47 48 49 43.3 Reflections and interference 43.4 Vibration breaks 43.5 Structural intensity Balancing of rotating and reciprocating machines Reduction of impact forces; shock isolation and absorption Vibration isolators and attenuators 46.1 Theories of vibration isolation and isolators 46.2 Vibration isolators 46.3 Foundation analysis and design 46.4 Active vibration control Vibration-damping materials and structures 47.1 Mechanisms of damping - theory 47.2 Constrained layer damping 47.3 Damping of structures and panels 47.4 Dynamic absorbers Vibration generators, shake tables Effects of vibration and mechanical shock (on man, on structures) 49.1 Onman 49.2 On structures and machines 49.2.1 Vibration induced effects 49.2.2 Noise induced effects 49.2.3 Designs to withstand high noise levels 49.3 Criteria 49.3.1 Criteria for vibration of human body and organs 49.3.2 Criteria for machine vibrations 49.3.3 Criteria for shock in transportation of goods IMMISSION: PHYSICAL ASPECTS OF ENVIRONMENTAL NOISE 52.9 Planning for noise control, zoning, land use and urban planning 52.9.1 Ambient sound levels 53 In-plant noise control 53.1 In-plant noise levels 53.2 Exposures of workers 53.3 Planning, design and construction for noise control 53.4 Booths and control rooms 54 Shipboard and offshore platform noise control 54.1 Noise control in ship spaces 54.2 Noise control on offshore platforms 55 Outdoor plant noise control design and construction 56 Noise surveys 56.1 Outdoors 56.2 Indoors IMMISSION: EFFECTS OF NOISE 60 61 62 63 (Multiple sources and multiple paths) 50 51 General Building noise control 51.1 Sound fields in rooms and enclosed spaces 51.U Industrial halls and plants 51.1.2 Concert or other halls for audiences or performances 51.l.3 Special spaces (corridors etc). 51.2 Reduction of noise levels by increased absorption 51.3 Sound transmission thru windows, doors, walls, ceilings, floors 51.4 Sound-insulating structures, transmission coefficients and transmission loss 51.5 Flanking and impact transmission 51.6 Heating, ventilating & airconditioning (aVAC) systems 51.7 Landscaped (open plan) offices and lobbies 51.8 Elevators and escalators 51.9 Plumbing and piping noise 52 Community noise control 52. I Community noise levels 52.2 Airport noise 52.2.1 Commercial airports 52.2.2 Military airfields 52.2.3 General aviation airports 52.2.4 Heliports 52.2.4.1 Police 52.2.4.2 Hospitals 52.2.4.3 Military 52.3 Road traffic noise 52.4 Rail vehicle noise 52.5 Industrial noise (inel. noise around plants & power stations) 52.6 Construction noise 52.7 Sport areas and events 52.8 Residential area noise due to lawn mowers, air conditioners,etc 1994 March 64 65 66 67 68 69 General Perception of sound 61.1 Biomechanics of the ear 61.2 Theories of hearing 61.3 Hearing levels and hearing thresholds of populations 61.4 Presbycusis and sociocusis 61.5 Critical bandwidths, masking 61.6 Just noticeable differences Physiological effects 62.1 Hearing loss (temporary & permanent threshold shifts) 62.2 Extra-auditory effects (fatigue, blood pressure, heart rate) 62.3 Hearing conservation programs 62.4 Workers compensation; liability for hearing loss Psychological effects 63.1 Loudness 63.2 Perceived noisiness, annoyance 63.3 Speech intelligibility and interference, speech levels, speech communication 63.4 Sleep disturbance 63.5 Work interference and efficiency 63.6 Infrasonic noise 63.7 Noise quality Effects of noise on physical structures 64.1 On natural environment, parklands 64.2 On structures and in materials, sonic fatigue 64.3 Sonic boom damage Effects of noise on domesticated and wild animals 65.1 Domestic animals 65.2 Wildlife Sociological effects: community reaction to noise 66.1 Community disturbance, interference with activities 66.2 Assessment of impact of community noise Economic effects 67.1 Economic aspects of noise reduction 67.2 Cost-benefit analyses 67.3 Manufacturers', operators' and users' costs 67.4 Social costs of noise Environmental impact statements 68.1 Background or ambient noise (baseline) 68.2 Environmental noise sources 68.3 Population exposure; impact criteria and assessment techniques 68.4 Highway projects 68.5 Airport projects 68.6 Public facilities under construction 68.7 Noise control planning; siting issues and zoning Criteria and rating of noise 69.1 For acceptable levels of noise in rooms 69.2 For speech interference 69.3 For annoyance 69.4 For sonic-fatigue resistance Noise/News International 23 69.5 For land-use planning with respect to noise ANALYSIS 70 71 General Instruments for noise and vibration measurements 71.1 Transducers 71.1.1 Microphones, wind screens 71.1.2 Vibration pick-ups 71.1.3 Intensity probes 71.104 Transducers for sound generation & reproduction 71.1.4.1 Loudspeakers 71.1.4.2 Headphones 71.1.9 Other sensors 71.2 Amplifiers, including preamplifiers 71.2.1 Amplifiers for measurement systems 71.3 Sound level meters 71.3.1 Conventional 71.3.2 Integrating-averaging 71.3.3 Computer-based 71.4 Sound exposure meters 71.5 Waveform or frequency analyzers 71.6 Filters, analog and digital 71.7 Indicating devices 71.8 Data acquisition systems, recorders &data storage devices 71.9 Calibration; acoustical and electrical performance verification 72 Measurement techniques 72.1 Sound pressure level 72.2 Vibration level 72.2.1 Surface contact methods 72.2.2 Non-contact methods (laser interferometry, holography) 72.3 Sound intensity 7204 Sound power 72.5 Transmission loss 72.6 Reverberation time 72.7 Measurement of properties of materials 72.7.1 Bulk sound absorption coefficient 72.7.2 Acoustic impedance 72.7.3 Flow resistance; effect of airflow rate 72.7.4 Density 72.7.5 Porosity 72.7.6 Elasticity of structures 72.7.7 Propagation constants 72.7.8 Structure factor 72.7.9 Non-acoustical properties 72.8 Impulsive noise measurements 72.9 Measurements of other quantities 73 Test facilities (design and qualification) 73.1 Free-field (anechoic rooms) 73.2 Free-field over a reflecting plane (hemi-anechoic rooms) 73.3 Reverberation rooms (diffuse field) 73.4 Outdoor test sites 73.5 Laboratory facilities (design and construction) 73.6 Other test environments (indoor and outdoors) 74 Signal processing 74.1 Correlation and coherence analysis 74.2 Bursts and impulsive sounds 74.3 Digital processing and simulation 74.3.1 Processing of microphone array signals 74.4 Automated data processing and reduction 74.5 Diagnosis and failure prediction 74.5.1 Machinery and condition monitoring 74.6 Source localization and transmission paths 24 Noise/News International 75 76 77 78 79 74.7.1 Processing by microphone arrays 74.8 Frequency domain and spectral analysis 74.9 Other signal processing techniques Analytical methods 75.1 Statistical methods 75.2 Statistical energy analysis (SEA) 75.3 Finite element methods (FEM) 75.4 Computer algorithms including computer aided design 7504.1 Expert systems 75.5 Boundary element methods (BEM) 75.6 Modal analysis 75.7 Imaging of acoustical and vibrational fields (holography, etc.) 75.8 Wave vector analysis Modeling, prediction and simulation 76.1 Propagation models, noise models 76.1.1 Outdoors 76.1.1.1 Road traffic noise 76.1.1.2 Rail traffic noise 76.1.1.3 Noise in communities around airports 76.1.1.4 External industrial noise 76.1.2 Indoors 76.1.2.1 Factory halls, sound level contours indoors 76.1.2.2 Concert halls 76.2 Small scale modeling 76.3 Building foundation modeling 76.9 Other modeling, prediction and simulation methods Sampling and quality control procedures Audiometry, dosimetry and hearing measurements Psychoacoustical evaluations and testing 79.1 Speech quality 79.2 Preference testing REQUIREMENTS 80 81 82 83 84 85 86 87 88 89 General Standards 81.1 National standards 81.2 International standards 81.2.1 InternationalOrganizationforStandardization(lSO) 81.2.2 International Electrotechnica1 Commission (lEC) 81.2.9 Otherinternational standards 81.9 Other standards documents Federal government legislation and regulations State and local legislation and regulations Other legislation and requirements 84.1 European Community requirements Ordinances, including zoning requirements Building codes Specifications 87.1 Purchase specifications for new equipment Auditing, enforcement and certification 88.1 Laboratory accreditation Labeling RESERVED FOR FUTURE EXPANSION 90 91 92 93 94 95 96 97 98 99 1994 March Appendix C Questionnaire Since the I-INCE subject clasification scheme was first discussed more than twenty years ago, a number of noise control engineers have participated in its development. One of the purposes of this questionnaire is to identify those engineers who have not previously had an opportunity to express their ideas concerning classification. Current Status of the I-INCE Classification Scheme 1. Do you find that the I-INCE Classification of Subjects is useful in its present state of development? _ _ yes_ _ no _ _ undecided 2. Do you feel that the I-INCE Classification of Subjects can and should be improved? _ _ yes_ _ no _ _ undecided 3. Are you willing to offer suggestions for its improvement? _ _ yes_ _ no (If you answered "no" to this question, please do not return the questionnaire.) Improvement of Classification Scheme As a traditional, hierarchical scheme, the I-INCE Classification of Subjects divides the field of noise control engineering successively into more and more specific classes. The major difficulty with such schemes is that they may be uneven in their coverage; the I-INCE scheme is no exception. For some subjects, there are six levels of classification; in others, only two levels. Please refer to the One-Page Summary for the first-level code. 4. In my opinion, the Section in greatest need of improvement is: _00 10 _20 _30 _40 _50 _60 _70 _80 5. I will assist (by correspondence) with further refinement of the I-INCE Classification of Subjects. _ _ yes_ _ no (If you answered "yes" to this question, give your name and address below. You will be contacted by a representative from the committee responsible for the maintenance of the I-INCE Classification of Subjects.) 6. Do you feel that an alphabetical list of subject headings would assist in locating any subject in the classification scheme? _ _ yes_ _ no_ _ undecided 7. I have reworked part of the I-INCE scheme, and offer the following improvements to a second-level or third-level section: (use an additional page if necessary): Submitted by: Name _ Address _ postal code country Please mail this questionnaire to: INCE/USA, P.O. Box 3206 Arlington Branch, Poughkeepsie, NY 12603, USA or FAX questionnaire to: + 1 9144739325, and thank you very much for your efforts to improve the I-INCE classification scheme. 1994 March Noise/News International 2S Feature Deaf Colleague, On behalf of the Organizing Committee for ITER-NOISE 94, the Institute of Noise Control Engineering of Japan, and the Acoustical Society of Japan, it gives us great pleasure to invite you to participate in INTER-NOISE 94, the 23rd International Congress on Noise Control Engineering, to be held in Yokohama, Japan from 1994 August 29 to 31. A II member of the Organizing Committee join us in extending this invitation to you. We are making every effort to have a well-organized Congress, and of course to make your visit a fruitful and pleasant one. INTER-NOISE was held in Japan in 1975, and since then the management and control of the noise environment have greatly improved. In the technical program of the Congress, three distinguished lectures will be presented in plenary sessions, and approximately 500 invited and contributed papers which cover all area of noi e control will be presented in nine parallel sessions. An equipment exhibition will be held in conjunction with the Congress. Acoustical materials, noise control equipment, measuring instruments and software, active noise control equipments, and ear protectors will be on display in the Congress building. Brief presentations will also be given by exhibitors in special sessions connected with the exhibition. Prior to INTER-NOISE 94, the Fifth Western Pacific Regional Acoustics Conference (WESTPRAC V) will be held in Seoul, Korea, a city that can be reached by a two-hour flight from most Japanese citie . WESTPRAC V will cover all areas of acoustics and will heartily welcome those who are interested in the Conference. The International Conference on Motion and Vibration Control (MOVIC) will also be held in Yokohama, and will partly overlap INTER-NOISE 94. Yokohama, situated 30 kilometers south of Tokyo, is one of the busiest seaports in the world, and the second largest city in Japan. Yokohama, with a population of over three million, is a romantic, cosmopolitan and exotic city with many tourist attractions, new and old. The social programs will include one-half day tours for accompanying persons, a banquet on a cruise boat, and technical visits to high-tech industries. We are sure you will enjoy INTER-NOISE 94 in Yokohama both technically and socially. We look forward, with great anticipation, to seeing you in Yokohama in August. -Masaru Koyasu President, INTER-NOISE 94 -Toshio Sone General Chairman 26 Noise/News International The INTER-NOISE 94 Program NTER-NOISE 94, the 1994 International Congress on Noise Control Engineering, will be held at Pacifico Yokohama (Pacific Convention Plaza Yokohama) from 1994 August 29 to 31. INTER-NOISE 94 is the twenty-third in a series of annual international congresses on noise control engineering which have been held around the world since 1972. This is the second INTER-NOISE congress to be held in Japan; the first one was held in 1975 in Sendai. The congress is sponsored by the International Institute ofNoise Control Engineering, and is being jointly organized by the Institute of Noise Control Engineering of Japan, the Acoustical Society of Japan, and the Foundation for the Advancement of International Science. The theme ofINTER-NOISE 94 is Noise - Quantity and Quality. Three plenary distinguished lectures on this theme will be presented from different viewpoints in the Plenary Sessions. The Plenary Session speakers are listed later in this article. Five hundred sixty abstracts have been accepted from authors in 42 countries. These papers which relate to different areas of noise control engineering will be presented in 9 parallel technical sessions. Special Technical Sessions have been organized by individuals and the Technical Program Committee. The topics of the Special Sessions are as follows: • Active noise and sound field control organized by I.Tichy and Y.Yamasaki • Active vibration control organized by R. Bernhard and H. Hamada • Aircraft and airport noise organized by I. G. Bekebrede and I. Yamada • Characterization of structure-borne sound sources and components organized by T ten Wolde and K. Fujiwara • Exposure to noise organized by K. Kuno • Floor impact noise organized by A.C.C. Warnock and M. Yasuoka • Information processing and auditory perception in noisy environments organized by T Houtgast and M. Tohyama • Inner ear function and noise organized by T Gladke and S. Funasaka • New methods of sound absorption and insulation measurements for future standards I 1994 March organized by H. Goydke and M. Vorlander • Noise control in the workplace organized by T. F. W. Embleton • Noise legislation for road vehicles organized by U. Sandberg and S. Ohno • Prediction of road traffic noise organized by K. Takagi and I. W. Cha • Railway noise and vibration organized by B. Barsikow and H. Fujita • Sound source characterization in duct systems noise control will be held at the center area of the congress plaza. The exhibition will include noise analyzers, sound level meters, computer-based instrumentation systems, sound intensity analyzers, signal processing systems, equipment for active noise control, acoustical materials, and other devices for noise control. The following is a partial list of companies that will exhibit: organized by M. Crocker and M. Terao • Sound amenity and soundscape organized by K. Hiramatsu • Sound intensity applications organized by H. Suzuki • Sound power determination organized by G.S.K. Wong • Sound quality of machinery noise organized by 1. Blauert and T. Hashimoto • Structural intensity measurement organized by G. Pavie and Y. Irie • Subjective evaluation of environmental noise organized by H. Fast! and S. Kuwano • Subjective evaluation of vibration organized by M. Griffin and S. Maeda • Recent development of instrumentation and software (Exhibitors' presentation) organized by A. D. Wallis and T. Ono GENERAL INFORMATION Dates The technical program, social events, and accompanying persons programs of the Congress will be held from Monday, 1994 August 29 to Wednesday, 1994 August 31. Technical visits are planned on Thursday, 1994 September 01. Official Language English will be the official language ofthe Congress. Simultaneous translation from English to Japanese will be provided only for the three plenary distinguished lectures. CONGRESS VENUE The opening and closing ceremony and all the technical programs will be held at Pacifico Yokohama (Pacific Convention Plaza Yokohama). Pacifico Yokohama forms a part of a congress complex consisting of an international exhibition hall, a firstclass hotel, a National Convention Hall, and the Convention Plaza. It is located in a newly- developed section of Yokohama City at a sea-front location, and is only a 10-minute bus ride from Yokohama Station, a 5-minute bus ride or a 15-minute walk from Sakuragi-cho Station. EXHIBITION A major exhibition of instruments and products for 1994 March Briiel & Kjrer Cirrus Research PLC Larson Davis Laboratories Lucas Cel Instruments Ltd. Nippon Sheet Glass Environmental Amenity Co. Ltd. NorsonicAS Ono Sokki Co. Ltd. Rion Co. Ltd. SDRC Sho-on Giken Co. Ltd. Sony Magnescale Inc. Yokogawa-Hewlett-Packard Ltd. SOCIAL PROGRAM Opening Ceremony The opening ceremony on the morning of Monday, 1994 August 29 will be held in the main hall of the convention plaza and will include welcoming addresses and a keynote lecture. Reception On the first day, Monday, 1994 August 29, following the afternoon sessions, a reception for all registrants and registered accompanying persons, hosted by our sponsors, will be held in the convention plaza in a room with a beautiful view of Yokohama Bay. Banquet In the evening of 1994 August 30, all delegates and accompanying persons are encouraged to participate in a cruise around Yokohama Bay. They will enjoy beautiful views of the city of Yokohama and Bay Bridge as well as typical Japanese and Western food and drinks. The Banquet is not included in the registration fee and costs JPY 10 000 per person. Due to limited space, the number of participants must be limited. Registration for the banquet will be on a first-come, first-served basis. Please register as soon as possible. Closing Ceremony and Reception On Wednesday afternoon, August 31, a closing ceremony and farewell drinks will be offered after the technical sessions. Noise/News International 27 Half-day Tour around Yokohama A half-day bus tour around Yokohama will be organized every day during the congress. This tour is free for registered accompanying persons and costs JPY 3 000 for others. More detailed information on the tour is available in the section below on the Accompanying Persons Program. YOKOHAMA Yokohama is situated 30 km south of Tokyo, and is conveniently linked with Tokyo's major stations by trains. Yokohama is one of the busiest seaports in the world, and one of the largest cities in Japan, with a population of over 3 million. Yokohama is a romantic, cosmopolitan and exotic city with many tourist attractions. The ancient capital of Kamakura with many historical spots and the beautiful Hakone National Park are 15 km and 60 km, respectively, from Yokohama. The waterfront area around Pacifico Yokohama is being transformed into a new city center for Yokohama. Open to the public in this area are the convention complex involving Pacifico Yokohama, the Yokohama Museum of Art, the Nippon-Maru Memorial Park (where the graceful Nippon-Maru sailing ship sits in dry dock), the Yokohama Maritime Museum, the Landmark Tower, etc. Climate and Clothing Yokohama is usually sunny, hot and a bit humid in August. The average temperature in daytime usually goes up to a range of 28 to 33 degrees Celsius. Accordingly, light and casual clothing is appropriate. However, as the Conference Hall and all the hotels are air-conditioned, it is advisable to bring a light jacket or a sweater. A small umbrella is also advisable for occasional evening showers. REGISTRATION As is customary for INTER-NOISE Congresses, one full delegate registration fee is required for each technical paper included in the program. This fee should accompany the manuscript and be submitted prior to 1994 April 15. Papers submitted without registration fee will not be printed in the congress proceedings and will not be included on the technical program. When and where to send your manuscript and the forms The destinations and the deadlines of the Congress registration fonn, the Hotel reservation fonn, and your manuscript are somewhat complicated. Please read the following description carefully so that each participant will be properly registered. Manuscript. Send your manuscript to our Editor, Prof. Kuwano at Osaka University, by 1994 April 28 Noise/News International 15. A special envelope with the address will be attached to the manuscript paper. Congress registration form. Send your INTERNOISE 94 Congress Registration Form to the Congress Secretariat Sendai, Japan. Registrants with paper submission. The registration form should be returned to the Congress Secretariat with payment by 1994 April 15. Registrants not submitting a paper. The registration form should be returned to the Congress Secretariat with payment by 1994 July 31. Hotel reservationform. Send your hotel reservation form to our official travel agent, KNT. While the deadline for the acceptance of the form is 1994 June 23, reservation well in advance is strongly recommended to assure a reservation at the hotel you select. Registration desk The registration desk will be open from 14.00 to 20.00 on Sunday, 1994 August 28; delegates should pick up their registration materials at this time if possible. The Registration Desk will be open from 08.00 to 17.00 on Monday and Tuesday, August 29 and 30, and from 08.00 to 11.00 on Wednesday, August 31. Registration Fee Registration fees for delegates include a set of congress proceedings, participation in the technical program, the opening and the closing ceremonies, morning and afternoon coffees, and the reception held in the evening of Monday, 1994 August 29. The accompanying persons registration fee includes attendance at the opening and closing ceremonies, the reception and a guided half-day tour around Yokohama city on a day of your choice (please specify your preference on the registration form). Classification of Delegates Fee on or before 1994 May 30 Fee on or before 1994 June 01 General Delegates JPY 45 000 JPY 50 000 Students * JPY22 000 JPY25 000 Accompanying Persons JPY 4 000 JPY 4 000 * Student means undergraduate and masters course students. Doctoral students are not included. If you would like to apply for this special discount, please attach a letter of your professor to certify your status. Registered delegates and accompanying persons may attend the congress banquet and cruise round the Yokohama Bay at the cost of JPY 10 000 per 1994 March person and can also apply for the technical tours and specially planned accompanying persons tours and events as listed in this announcement. Please use the congress registration form in this issue of Noise/News International. Payment All registration fees for INTER-NOISE 94 should be sent with the registration form to the Congress Secretariat: INTER-NOISE 94 Secretariat, Sone Laboratory, Res. Inst. Electr. Comm., Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai 980, Japan. The Secretariat will accept the following creditcards: VISA, Master Card, American Express, and Diners Club. If you have more than one type of credit card, the Secretariat would prefer that you use a VISA card or a Master Card. International Postal Money Order and money transfer to our bank account are also accepted. Our bank account is: Name of Bank: Asahi Bank, Sendai Branch, Name of Account: INTER-NOISE 94 Secretariat Account No: S/A315-1l51747 Handling charges should be covered by payers. PersonaJ checks, bank drafts, and travelers checks are not accepted. The registration will be closed on 1994 July 31. After this date, the registration fee will be received only at the registration desk at the Congress. TRAVEL INFORMATION Official Travel Agent Kinki Nippon Tourist (KNT) has been appointed as the official travel agent for INTER-NOISE 94 Congress to handle all travel arrangements to/from and in Japan. All inquiries and application forms for hotel accommodations should be addressed as follows: Kinki Nippon Tourist Co., Ltd., Attn: E. Tanimura, M. Nakamura Inbound Travel Division 19, Kanda-Matsunaga-cho Chiyoda-ku, Tokyo 101, Japan FAX: +813 3255 7128; Telephone: +813 3253 6131 KNT has several overseas branches called Kintetsu International Express (KIE). Participants from North America and Europe may contact the following offices for information on Japan. KIE (USA) Inc. 1325 Avenue of the Americas, New York, NY 10019, U.S.A. FAX: +1 2122599705; Telephone: +1 2122599700 KIE (Europe) B. v., Amsterdam Branch, Amsteldijk 166, 1079 LH Amsterdam, The Netherlands 1994 March FAX: +31205046677; Telephone: +31205046666 JAPAN RAIL PASS The Japan Rail Pass is a special ticket that is available only to travelers visiting Japan from foreign countries. The rail pass is a flash pass good on most of the trains and ferries in Japan. It provides a very significant saving on transportation costs within Japan if you plan to travel more than just from airports to Yokohama and return. You must purchase the pass before going to Japan. Please contact KIE or your travel agent for details. Followings are the examples of the cost of the pass for ordinary (second class) seats. 7-day: JPY 27 800 14·day: JPY 44200 HOW TO REACH YOKOHAMA Transportation from New Tokyo International Airport (Narita Airport) Yokohama is situated 90 km south-west of New Tokyo International Airport. The following two ways to reach Yokohama are recommended: 1. The Narita Express (NEX) from New Tokyo International Airport (Narita Airport) to JR Yokohama station. It is a comfortable 88-minute train ride on NEX, which runs at intervals of 60 minutes, and the ticket costs JPY 4 100. After you arrive at Yokohama Station, you may take a lO-minute bus ride to Pacifico Yokohama. We recommend, however, to change railways at the JR Yokohama station to go to the JR Sakuragi-cho Station. Take the Keihin-Tohoku Line and ride one station (Do not go in the direction towards Tokyo). From the JR Sakuragicho Station, you can walk to Pacifico Yokohama in about 15 minutes; a bus takes only a few minutes. 2. The Highway Bus (Limousine Bus) from New Tokyo International Airport to Yokohama City Airterminal takes about two hours and the fee is 3 300 JPy' The terminal is connected by a five-minute bus ride to Yokohama Station. We recommend that you do NOT use a rental car to reach Yokohama because of the complex roadnetwork through Tokyo and traffic jams. Transportation from Osaka You may also use Osaka to enter Japan. Osaka is 500 km west of Yokohama. In this case you may take either a train or a domestic flight: 1. Non-stop-bus service to the JR Shin-Osaka train station and then a super express train (Tokaido Shinkansen, fee: JPY 13 700) to Shin-Yokohama Station. The Shinkansen takes 3 hours from Osaka to Shin-Yokohama. From Shin-Yokohama Station, take Yokohama City's underground line to come to Sakuragi-cho Station. 2. A domestic flight to Tokyo International Airport (Haneda Airport) (fee: JPY 14 600). Haneda Noise/News International 29 Airport is connected by a 30-minute bus ride to JR Yokohama Station. Distances from Yokohama: Tokyo: 30km Osaka: 500 km Nagoya: 300 km Sendai: 350 km Seoul: 1,200 km Beijing: 2,200 km Sydney: 9,300 km Los Angeles: 9,600 km Leuven: 9,500 km ADDITIONAL TRAVEL PLANNING During the congress, a KNT travel desk will be available near the INTER-NOISE 94 registration desk. The KNT desk will open between 14.00 and 20.00 on Sunday, 1994 August 28. From 1994 August 29 to August 30, it will open between 11.30 and 13.30 and between 17.00 to 18.30. Some ready-made tours are provided by KNT. The followings are examples: One day tour to Mt. Fuji and Hakone National Park 06.30 -19.00 JPY 17000 One day tour to Nikko 06.30 - 19.30 JPY 17 000 One day Shinkansen tour to Kyoto 07.30 - 21.30 JPY 49 000 1\vo-day tour to Kyoto and Nara 07.30 1st day - 21.30 2nd day JPY 70000 On all of these tours, there will be English-speaking guides. USEFUL INFORMATION We hope that the following information will make your visit to Yokohama more enjoyable. Passports and Visas Every foreign national coming to Japan must have a valid passport. Citizens of countries which have Visa Exemption Arrangements with Japan are not required to have a visa to enter Japan for a stay shorter than three months. Citizens of all other countries must obtain a visa from the Japanese Embassy or Consulate prior to entering Japan. A visa cannot be issued in Japan. CURRENCY EXCHANGE Major banks and the Yokohama Central Post Office handle foreign currencies. They are located in the downtown area of Yokohama. Banks are open from 9.00 to 15.00 on weekdays. The Post Office is open for exchange from 9.00 to 16.00 on weekdays. They are closed on Saturdays, Sundays and National Holidays. Major foreign currencies can also be exchanged at the larger hotels but the exchange rates are not as good as 30 NoiselNews International those in banks and the Central Post Office. It is recommended that participants purchase traveler's checks in Japanese yen, US dollars, UK pounds or German DM before leaving their own countries because of the favorable exchange rate. In Japan, exchange rates for traveler's checks are usually better than those for foreign bank notes. In almost all banks, cash dispensers are available which accept major credit cards. Most such dispensers are open until 18.00. A personal identification number (PIN) is required to obtain money from cash dispensers. Restaurants and shops except those in major hotels do not accept traveler's checks, even in Japanese yen. Travellers checks should be cashed at banks or the Central Post Office. Credit Cards Master Card, Diners Club, Visa, and American Express are widely accepted at hotels, department stores, shops, restaurants, and night clubs. Tipping Tipping is not customary in Japan except when asking for a special service. Electricity 100 V, 50 Hz In major hotels, however, you may find two sockets, one for 110 and one for 120 volts. Postal Service Main Offices: Weekdays 09.00 - 19.00 Saturdays 09.00 - 17.00 Sun. & Hal. 09.00 - 12.30 Branch Offices Weekdays 09.00 - 17.00 Saturdays closed Sun. & Hal. closed For airmail and domestic express mail, the Central Post Office in Yokohama is open 24 hours a day. Car Rental Rental car desks of major companies such as Hertz and Avis as well as of domestic companies are available at the airports, and at major JR stations, including Yokohama Station. Rules of the Road Vehicles must keep to the left in Japan. In the front seats, lap and shoulder belts are mandatory for both the driver and passengers. In most parts of towns and cities, the only parking is in toll parking lots. Opening Hours of Stores Shops are usually open from 10.00 to 19.00 including Saturday and Sunday. Lunch Lunch is not included in the registration fee. There are restaurants in and adjacent to the Convention Plaza. Many restaurants are available in the Land1994 March mark Tower, the tallest building in Japan, an 8-minute walk from the Congress Plaza. Restaurants Yokohama is a special treat if you like Chinese food. In Chinatown, the largest Chinese settlement in Japan, you will find more than 100 colorful Chinese restaurants. In addition to Chinese food, restaurants serving every traditional style of Japanese cuisine, traditional and Japanized European cuisine, as well as a great variety of ethnic cuisine, can be found in the downtown area close to the Convention Plaza. ACCOMPANYING PERSONS PROGRAM The following activities are being planned as our Accompanying Persons' Program. These programs are also open for the delegates if space is available. One-half day tour around Yokohama A one-half day bus tour around Yokohama will be organized each day. On Monday, 1994 August 29, the tour will be held in the afternoon, and on 1994 August 30 and 31, it will be held in the morning. The tour will take you to Mikazuki (Crescent) Park, Marine Tower, Bay Bridge, etc. Registered accompanying persons may take part in the tour without additional charge. Other delegates are requested to pay JPY 3 000 to participate in this tour. Please specify your preference of the dates on the registration form. Sightseeing tour to Kamakura, Tuesday, 1994 August 30 One-day tour to the old capital of Japan. There are interesting old Buddhist Temples and Shinto Shrines. The tour starts from the Convention Plaza at 09.30 in the morning and returns to the same place at around 16.00. The cost of this tour is JPY 9 500 (lunch and coffee are included). Sightseeing tour to Asakusa and Yedo Museum, Wednesday, 1994 August 31 One-day tour to Yedo Museum which displays interesting historical materials and records of Yedo Period (1600 - 1867). Then to Asakusa Street to get the feeling of old Tokyo (Yedo). You will enjoy a delicious Tempura lunch in Asakusa. The tour starts at the Convention Plaza at 9.00 and returns at 17.00. The cost of this tour is JPY 9 500 (lunch and coffee are included). Japanese Tea Ceremony in the afternoon of Thesday, 1994 August 30 You will experience a Japanese Tea Ceremony Sado. This is a special performance which has been recommended since the 16th century in Japan for mental calmness and composure. The ceremony will be held from 13.30 to 15.30 in the afternoon of Tuesday 1994 August 30. The location of the Tea 1994 March Ceremony will be announced at the registration desk. A cup of "bitter" green tea with traditional sweets will cost JPY 400. The number ofparticipants is strictly limited to 100. Registration will be on a first come, first served basis. Japanese Ikebana (Flower Arrangement) Exhibition on Monday, 1994 August 29 All participants of the congress as well as accompanying persons may appreciate the exhibition of Japanese Ikebana (Flower Arrangement, Kado), with no extracharge. This is one of the traditional ceremonies to appreciate the beauty of various flowers which has been continued from the Yedo Period. The Ikebana exhibition will be held from 10.30to 15.00 on Monday, 1994 August 29. The location ofthe exhibition will be announced at the registration desk. TECHNICAL TOURS One-day post-congress technical tours are planned on Friday, 1994 September 1. It will be a good opportunity to get an overview of a variety of Japanese advanced technologies. The following three tours are available. All tours will start at 9.00 from the Convention Plaza and end in the evening. We travel by bus, and each tour includes visits to two places. The price includes lunch. TOUR 1 This tour starts with a visit to Fujitsu Laboratories, Ltd. and then moves to RICOH Ltd. Gotenba Plant. LSI technology and super-conductivity devices will be shown at Fujitsu Laboratories. At RICOH, automated assembly lines of copiers and facsimile machines will be shown. On the way to RICOH, lunch will be provided in the bus. Mt. Fuji can be seen during the tour if the weather is clear. The tour will end at around 18.30. TOUR 2 This tour starts with Nissan Motor Co., Ltd. Oppama Plant and then moves to the Technology Research Center of the Taisei Corporation by bus. At the Nissan plant, you will see modernized assembly and inspection lines of automobiles. At Taisei, you will visit research facilities for the acoustical environment as well as light and heat environments. The tour will end at around 17.00. TOUR 3 This tour starts with Kajima Technical Research Institute of Kajima Corporation and then moves to NTT Human Interface Laboratory by bus. At Kajima you will see buildings for structure and vibration tests. At NTT you will see research facilities for automatic speech recognition and adaptive control of sound. The tour will end at around 18.00. Tour venues are subject to alternative arrangements. The tours are also open to Registered AccompaNoise/News International 31 nying Persons. Please kindly refrain from joining a tour to a compnay of the same category as your own company. The cost of each tour is JPY 6 000. The number of participants in each tour is limited to 90. Registration for the tours will be on a first-come, first-served basis. You may register for the tours using the Congress Registration Form. Registration well in advance is strongly recommended. SHORT VISITS Short technical visits to interesting buildings near the Convention Plaza will also be held. These visits will take about one hour and will be free of charge. The venue and schedule of the visits will be announced during the congress. COMPANION CONFERENCES INTER-NOISE 94 will be preceded by the 5th Western Pacific Regional Acoustic Conference (WESTPRAC) in Seoul, Korea, from 1994 August 23 to 25. (Secretariat: Wann Yu, The Acoustical Society of Korea, Science Building, Suite 302, 635-4 YuksamDong, Kangnam-Ku, Seoul 135-703, Korea. Telephone: +8225563513, FAX: +8225699717). INTER-NOISE 94 will be followed by the International Conference on Motion and Vibration Control (MOVIC) in the Shin-Yokohama Prince Hotel, Yokohama, Japan, from 1994 August 31 to September 3. (Secretariat: Prof. K. Yoshida, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohokuku, Yokohama 223, Japan. FAX: +81455635943). THE INTER-NOISE 94 TECHNICAL PROGRAM DISTINGUISHED LECTURES NOISE - QUANTITY AND QUALITY Seiichiro Namba, Osaka University, Japan PROGRESS IN BUILDING ACOUSTICS Andre Cops, Katholieke Universiteit Leuven, Belgium REGULATION OF COMMUNITY NOISE Dieter Gottlob, Environmental Protection Agency ofGermany, Germany PROGRESS REPORTS OF I-INCE WORKING PARTIES UPPER NOISE LIMITS AT THE WORKPLACE Tony Embleton, Canada NOISE EMISSIONS OF ROAD VEHICLES Ulf Sandberg, Swedish Road and Traffic Research Institute, Sweden ABSTRACTS ACCEPTED Abstracts with the following titles have been accepted for presentation at INTER-NOISE 94. 32 NoiselNews International SPECIAL SESSIONS These sessions have been organized by individuals and by the Organizing Committee. Active control (noise and vibration) Active Noise Control in Trucks • Active Attenuation of Impulsive Noise from a Railway Tunnel Exit. Multiple-Input Active Control of Road Noise. Active Control of Elevator Noise Caused by Ventilator. Reduction of the Noise Inside the Cab of Earth-Moving Machines by Active Noise Cancellation Technique. Active Control of Machinery-Generated Acoustic Noise Using a Multichannel, Broadband, Real-Time Controller. Active Noise Control Adapted to Co-Generation System • Application of Active Noise Control for SmallSized Electronic Equipments • Active Noise Cancellation of Low Frequency Noise Emitted from Tunnel of High Speed Train. Active Noise Control of Gas Turbine Exhaust Noise (Report 2) • Virtual Noise Source Identification for Active Noise Control System. On Arrangements of Noise-Controlled Points for Producing Larger Quiet Zones with Multi-Point Active Noise Control. Autodirective Sources for 3-D Active Noise Control. Transient Response of Systems for the Reconstruction of Acoustic Fields. On Design of Filters Synthesizing Anti-Noise for Achieving Good Noise-Suppression with Multi-Point Active Noise Control • The Acoustical Aspect of Global Sound Control by Active Technologies. A Study on Active Noise Control in 3-Dimensional Space for Minimizing Total Acoustic Power • Investigation on the Mechanism of Active Sound Control in Space. Active Sound Absorption in the Free Field: Part I Theory. Experiments on a System for the Reproduction of Direction of Arrival Information in Recorded Sound Fields • Theory of Acoustic Impedance Control for Active Noise Control Aircraft noise What Use Can Be Made of the Recent Technological Advances in Outdoor Instrumentation • Kansai International Airport on an Artificial Island-It is the Last Solution to Airport Noise Problems. Metrics Systems with Respect to Aircraft Noise Revisited. Noise Control for In-Service Jet Transports. The Effects of Night Flights on Near Airports. TOLAPS-a Program for Take-Off and Landing Profile Simulation. Environmental Noise Management for Helicopter Landing Areas.• Reduction by Regulation of Noise from Leisure Aircraft Activities. A General Prediction Procedure for Light Propeller Driven Aeroplane Flyover Noise Signatures • Airport Noise Prediction with the Application of the Integrated Noise Model and the German AzB Model, and the Consideration of Meteorological and Ground Effects • Effects of the Descriptor Change on the Value of the Property within the Noise Exposure Contours. Noise Contours Surrounding Ataturk Airport due to Run-Up Operations of the Airplanes. Introducing Topography Corrections into Aircraft Noise Calculations. Microphone Location for Unattended Aircraft Noise Measurement. Basic Consideration for Developing a Helicopter Noise Prediction Model. On the Structural Damage due to the Aircraft Noise-Is there Any Relationship between the Roof-Tile Slip Phenomena and SPL? • Interdependencies of Aircraft/Airport Noise and Urban/Regional Planning Sound source characterization in duct systems • A Rejection Method of Throttle Noise Contribution in Measurement of Sound Generated from a HVAC Duct Com- 1994 March ponent • Acoustical Source Characterization in Duct Systems-An Overview. Investigation of the Sound Generation from an In-Duct Fan Using a 2-Port Model. The Direct Least Squares Method for Determination of the Source Data of Acoustic One-Port Sources. Noise Spectral Analysis of the Turbomachinery Inlet Tubes • On the Modelling of Fluid Machines as Acoustic N-Port Sources Floor impact noise Method for Rating the Impact Sound Insulation of Floor Covering in Gymnasium • Effect of Floor Size on Impact Sound Levels. Alternative Rating of Impact Sound Insulation. Dynamic Properties of Floor Covering Materials. Transient Vibration of Light Frame Floors-Part III • The Present Situation and the Points Have to Be Improved of the Floor Impact Sound Insulation Property of Floor Finish Materials both in China and in Japan • Sound Insulation of Parquet Floors • Practical Investigations on Floating Floor in Ship • Classification and Recognition of Shapes of the Frequency Characteristics of Floating Floors.Information processing and auditory perception in noisy environments. Experimental Set-Up for Analysis of the Speech Intelligibility between Consultancy Modules on Landscape Banking Offices. Evaluation of Equalisation and Source Position Compensation Systems in Two Channel Sound Reproduction. Localization and Detection of Signals in Noise • General Introduction • Source Wave Form Recovery in a Reverberant Environment. Effect of IACC on Speech Clarity and Articulation. Design of Sound Field with Multi-Channel Public Address System. Hearing Test of Speech Waves Intermittently Replaced by White Noise. RASTI Measurements in Portuguese Roman Catholic Churches • Acoustic Quality via Intensity Measurements in a Church. Applying the Articulation Index in Evaluation of Speech Intelligibility in Several Band Noise and SIN Conditions Considering Hearing Impairment. Noise Reduction for Speech Using a Microphone Array with Consideration ofWavelength Constant. Floor Slope Design for Improved Acoustics in Speech Oriented Halls Noise control in the workplace Reduction of Impact Noise in the Sheet Metal Industry • Noise Reduction by Reshaping the Tongue in a Centrifugal Fan. Noise Control of Office Machines. Structural Acoustic Design for Noise Control. Upper Noise Limits at the Workplace. Noise Source Parameters for an Expanded-Metal Press. Noise Exposure in Aeronautical Industry Characterization of structure-borne sound sources and components Progress in the Development of International Standards for Determining Structure-Borne Sound Source Strength and Isolator Transfer Stiffness. Numerical Study of the Reverberant Reception Plate Method for Structure-Borne Noise Measurements of Small Compact Machines • Sound Scattering by Shells. Characterization of Structure-Borne Sound Sources • Surface and Terminal Source Power for Characterization of Vibration Sources at Audible Frequencies. Characterization of Structure-Borne Sound Sources in Dwellings Railway noise and vibration Sources and Control of Railway Noise Vibration. Aerodynamic Noise ofMaglev Cars. Dynamic Characteristics ofRail Track with Viscoelastic Vibration Isolation Components • Internal Pressure Level Prediction Method in the Two Story High Speed Trains (TGV-2N). Development of Low-Noise Configuration ofCurrent Collectors for High-Speed-Trains. Development ofLow Aerodynamic Noise Pantograph for High Speed Train • New Legislation to Control Railway Noise in Austria. Research on Visualization of Noise Distribution between the Sinkansen and a Noise Barrier. Prediction of the Shinkansen Noise • Trend~ in Low Noise Train Design. On the Boundary-Layer Contribution to Wayside Noise Generated by High-Speed Tracked Vehicles • Community Response to Railway Noise with Special Respect to High-SpeedTrains. Localization of Flow Noise Sources on High Speed Train Models in Anechoic Wind Tunnel • Increase of Noise Barriers Efficiency by Active Noise Control. Track Vibroacoustic Simulation • High Speed Train Noise AbatementImportant Parameters and Case Study • DeuFrako - I: Microphone Array Techniques Used to Locate Acoustic Sources on TGV-A, ICE and TR07 • DeuFrako -2: Localized Sound Sources onthe High-Speed Vehicles TGV-A, ICE and TR07 • New Airborne Noise Acoustic Insulation Structures for Railway Vehicle • Vibration Protection in Urban Underground Railways and Its Evaluation. Noise Control Investigation ofTramway-Barrier Using Ray Tracing Model. Research Evolution on Noise Problems Concerning the Speed System of ItaIianRailways. Community Response to High SpeedTrainNoise in France. Effects of Barrier Shapes on Railway Noise Reduction • Community Response to Railway Noise-Comparison of Social Survey Results between Japan and Other Countries. Experimental Investigation of Acoustical Characteristics of Trains • Different Interpretations of the Meaning of Annoyance. Irrelevant Background Noise and Hwnan Performance Subjective evaluation of environmental noise Noise legislation for road vehicles Noise Emissions of Road Vehicles-Effect of Regulations / Final Report of an I-INCE Working Party. Trailer Test of Tyre/Road Noise. Road Vehicle Noise Legislation in Japan • Road Vehicle Noise Legislation in the European Union Prediction of road traffic noise Noise Barrier Performance and Other Problems of German Rules and Regulations for the Prediction of Road Traffic Noise • Prediction of Traffic Noise along Expressway. Calculation Methods for Road Traffic Noise Propagation Proposed by ASJ • ASJ Prediction Methods of Road Traffic Noise • Noise Prediction and Evaluation of Traffic Noise from the Complex Road. Traffic Volume and Community Noise. Road TratIic Noise Prediction Model Developed in Thailand. On Traffic Noise Calculation Methods about Double Decks Road 1994 March Fitting of Hearing Aids with Loudness Scaling of Environmental Sounds. Loudness Judgments on the Background of Subjective Experience with Environmental Sounds. Perceptual Processing of Environmental Sounds. The Evaluation of Acoustic Features in Industrial Noise. Cross Cultural Comparison in the Annoyance due to Transport Noise. Comparison of Community Response to Outdoor Noise at the Areas along Shinkansen and Ordinary Railroad • Psychoacoustics and Rail Bonus. Subjective Price of Noise Reduction in the Case of Electric Appliances. Discussion about the Results from Hearing Tests of Rating on the Difference between the Annoyance Effects by Meaningful Sound and Meaningless Sound New methods of measuring sound transmission for future standards. Application of the M-Sequence Correlation Technique for Sound Transmission Measurements. Survey Test Methods for Measuring Airborne and Impact Sound Trans- Noise/News International 33 mission. Detenninistic Excitation Signals Reduces Statistical Spread and Extraneous Noise Contamination in Sound Transmission Measurements. Measurement of Sound Insulation with Intensity Technique. Concept of Reduction Index at Low Frequencies • Intensity Methods for Transmission Loss Measurement of Silencers. Impulse Method for Determination of Transmission Loss. Measurement of Equivalent Sound Absorption Area of Rooms Using Reference Sound Sources. Comparison of Sound Transmission Loss between the Sound Intensity Method and the Conventional Two Room Method in the Laboratory • Roughness Level as a Measure for Estimating Unpleasantness- Modification of Roughness Level by Modulation Frequencies • Digital Generation of Acoustical Targets for Car Sound Engineering Based on Psychometrical Data. Evaluation and Measurement of Roughness of Artificial and Technical Sounds. Subjective Evaluation of Car Interior Noise in a Consecutive Series of Driving Situation • Digital Filter Implementation for Application of Sound Quality. A Comparison Study of Annoyance Response between Ethanol Engine and Diesel Engine Noise Sound amenity/soundscape Validity of Structural Intensity Measurements • Structural Intensity Measurement of 2-Dirnensional Vibrational Field. Transmitted Power in Coupled Beams • Developments of Energy Density Models for Structural Problems. Measurement Error of Vibration Intensity Flow in a Beam Tenninated by an Elastic Impedance. Structure-Borne Intensity: Two Decades After. Structureborne Intensity Measurements • Experimental Study of Space Signal Processing for Structure Intensity Measurements. A Fiber Optic Vibrometer Array for Structural Intensity Measurements • The Measurement of Envelope Vibration Intensity to Identify the Combustion Impact Transmission in Diesel Engine • Measuring Condition and Precision of Structural Intensity Measurement • Predicted and Measured Reactive Power Flow with Different Cam Motions. Neurocontrol of Vortex Power Flow. Power Flow Measurement in Vehicle Floor Structure Using MultiInput Structural Intensity Techniques. On the Evaluation of Directional Components of Intensity in a Plate Using Two Accelerometers • Distribution of Structural Intensity in a Cylindrical Shell-Structure. Velocity-Intensity Index for Vibrational Intensity Measurements • Measurement of Vibration Power Flow in Plates and Beams • Structure-Borne Intensity Measurements for Multiple Inputs. Bending Wave Intensity in a Thick Beam. Influence of Near-Field Components for One-Dimensional Vibration Intensity Measurement Structural intensity measurement Research on Acoustical Environment Planning of the Cities • Cross-Cultural Study of Emotion and Identification to Environmental Sounds. How Important Do People Think Quiet Is for a Good Residential Environment? (Part2) • Reported Sonic Environment is Theory- and Method-laden. Acoustic Ecology: From the Expressivity ofSilence to the Pollution by Music. Description of Sound Map and Sound Events as Expression of Sound Environment • Historical Changes of Japanese Soundscapes Represented in the World of Haiku. Noise Treatment Technology in Amenity Space. Visually Handicapped Pedestrians and Sound Environment- Analysis of Social Survey to the Nonnal and of Interviews to the Visually Handicapped. Effects of Planting on ReliefofAnnoyance-Field Survey at Urban Roadside. Amenity of Environment in Residential Area on the Basis of Sound and Green. What is Good Environment in Classrooms? • An Investigation on Environmental Education on Sound Conducted in Japan. A Study for Designing Soundscape ofNeighborhood Park • Multiplicity of Meaning in Environmental Sounds Sound intensity applications Intensity Measurements in the Presence of Moderate Airflow • Practical Considerations about Noise Measurements in Railway Vehicles Using Conditioned Intensity. Application of Personal Computer Based Sound Intensity System on Coach Noise Control. Criteria for Local Noise Control Based on Energy Analysis of Sound Field • Intensity Technique Used for Airport Noise Monitoring. Separation of Sound Intensity Vector Using Variable Directional Microphone. Sound Power Estimation of a Converging Nozzle. Sound Power Detennination by Intensity Measurements for AirConditioning Equipments • Measurements of Absorption Coefficient by Intensity Method Sound power determination ASurvey Method for DeterminationofSound Power Levels under Reverberant Conditions in situ. Examination of Sound Intensity Scanning Technique to Determine Sound Power of Machinery Noise Sources. Measurement with Octave-Band and FractionalOctave-Band Filters. National Round Robin Test Detennining the Sound Power-Further Results. Future Needs for Sound Power Standards. Interference Effects on Sound Power Measurement • A Generalized Prediction Fonnula for Calculating Sound Power Level Data of Square Ceiling Diffusers • Procedures to Limit the Measurement Uncertainty of the Sound Intensity Scanning Method Detennining Sound Powers 34 Subjective response to vibration Path Analyses of the Effect of Vibration on Road Traffic and Railway Noise Annoyance. Whole-Body Vibration and Vehicle Comfort. This Countenneasure and the Present Condition of Building Vibration Influences the Dwelling Environment. Prediction of Discomfort Caused by ShortTenn Increases in Low-Frequency Vertical Vibration. Subjective Evaluations Concerning Complex Exposure Conditions. Measurements of Ground Vibrations Induced by Tokaido Shinkansen Trains. Measurement of Psychological Change Caused by Low-Frequency Whole-Body Oscillations • Human Response to the Motions of a Semi-Submersible Drilling Platfonn. Effect of Polyurethane Foam on Dynamic Sitting Comfort. Centre of Rotation for Pitch Head Motion during Exposure to Fore-And-Aft Seat Vibration. Experiment on the Evaluation of the Whole Body Exposure to Level-Fluctuating Vibration-Part 2: Subjective Perception in a Wooden House • Human Responses to Short Repeated Vibrations. Traffic-Induced Vibration and Geological Characteristics in the Vicinity of Cities in Japan Sound quality of machinery noise Noise exposure Product-Sound Design & Assessment: An Enigmatic Issue from the Point of View of Engineering? • Contribution Diagram as a Tool for Sound Quality Improvement • Sound Engineering of Vehicle Noise. Multidimensional Analysis of the Perceptual Dimensions and Features of Complex Noises Hearing Conservation Related to the Occupational Noise Standard. Non-Auditory Health Effects Research: A Conceptual Analysis of Recent Results and Research Needs. Nighttime Road Traffic Noise and Sleep Quality. Review of the Research on Daily Noise Exposure of People in Japan • Noise/News International 1994 March Analysis of 24-Hour Noise Exposure on Bangkok People. Personal Noise Exposure and Noise Environment in China. Noise-a Contributor to Chronic Diseases. Sound Produced by Metal Baseball Bats • 24 Hour Measurements of AWeighted Leq Outside and Inside Dwellings in Yokohama. Daily Noise Exposure of Housewives in Japan-Comparison of the Surveys in 1978 and in 1990 Inner ear function and noise Distortion-Product Otoacoustic Emissions in Humans: Sensitivity of Ll-L2 Differences to the Effects of Tonal Overstimulation • Distortion-Product Otoacoustic Emission in Rabbits: Resistance and Susceptibility to Noise Over-Exposure. Otoacoustic Emissions: New Views of Hearing and Hearing Loss. Detection of Hearing Loss Using Otoacoustic Emissions • Transiently-Evoked Otoacoustic Emissions (TEOAEs) from Industrial Workers Exposed to Noise. The Effect of 6 kHz Tone Exposure on the Inner Ear Function of the Guinea Pig Feeder. Reduction ofldling Noise Radiated from Circular Saw Blade. Reducing Construction Din in Hong Kong? • Prediction of Electromagnetic Vibration for Brushlees Motors Driven by Inverters • Test Reverberation Chamber Compact Matching Horns Parameter Choice Introducing Efficiently High Power from Pneumatic Acoustic Source. Noise Enclosure for Construction Works. Noise Generation of Foundry Machines and Definition of Reproducible Operating Conditions • Punching Noise Reduction of Punch Press Using High Damping Alloy as Punch Press Frame • Experimental Studies on the Dynamic Performance of Powered Knapsack Sprayer and the Control of Vibrations. Noise Control ofa Mechanical Car-Parking System Installed in Buildings. Characteristics of Noise Generated by Process Burners • Control of Infrasound Generated by Large Vibrating Screens used at Construction Sites. Noise and Noise Control of the Large Capacity Gear Box • The Experimental Research of the Specific Noise Law on Hydraulic Rock Drill • Noise Reduction on the River Ships Vehicle noise Noise of air moving devices Vacuum Motor Buzzing Noise Control. Screening of Noisy Junctions of a Tractor for Contactless Land Cultivation.• The Environment and Improvement of Traffic Noise in City Tunnel • Improvement of Acoustical Comfort Inside Cars by Using Laminated Glass. A Study of Sound Power Level Radiated from an Isolated Starting Truck. Effect on Passenger Car Wind Noise Sources of Different A-Post Configurations • The Study on Technology to Reduce the Noise Generated by Hydraulic Breakers. Generation of Low Frequent Noise in the Passenger Compartment of Overland Busses • The Relativity between Stationary Noise and Accelerated Noise from Motor Vehicle and It's Noise Control • Shall We Measure Lmax or Leq of Road Vehicles? • AStudy of Heavy Vehicle Engine Compression Brake Noise: The Feasibility of Developing a Road-Side Noise Test. A Study of the Interaction Effects between the Torsional Vibration Damper and the Engine Structure by Gated Measurements • Noise Reducing Modifications of the Lower Half and Front End on a Diesel Truck Engine. Noise Emissions from Snowmobiles-A Comparison of Laboratory and Field Measurements • Analysis of Dynamic Response and Noise Radiation of Engine Crankcase Coupled with Rotating Crankshaft • Coaxial Tuning Cables for Noise Reduction in Automotive Power Steering Systems • Sound Power Levels of Road Vehicles Measured Using a Reverberant Tunnel Selection of an Optimum Formula for Ship Fan Noise Levels and Spectrum Composition Evaluations through Power Parameters • A Flow Microstructure Control as a Way of Fan Noise Reduction. Noise Reduction of Fans by Control of Flow Distortion. Infra-Sound Control of a Centrifugal Fan by Inlet Cone Flow Guides. Acoustical Resonance in Turbomachines • Challenges for Quiet Radial Fan Design Tire/road noise Noise Reduction Factors of Drainage Asphalt Pavement • Acoustical Properties of Air-Saturated Granular Materials • The Noise Reducing Performance of Open Textured Road Surfacing Material • Influence of Porous Asphalt Pavement Characteristics on the Hom Amplification of Tire/Road Contact Noise. The Effect of Rain on the Noise Reduction of Porous Asphalt Pavement. Cabin Noise in Car on Cruising the Porous Asphalt Pavement. Effect of Sound Absorptive Common Footway on Traffic Noise Machinery noise Does the Ideal Inverter Eliminate the Vibro-Acoustic Problems in Variable-Speed Induction Motor Drives? • An Aerodynamic Design of a Rotary Cutter Head for the Debarking of Logs • Analysis of Vibroacoustics Activity of Electric Drive Systems. Effects of Flux Variations over the Noise Problems of Series Fractional Horse Power Motors • Improvement to Reduce Noise Generated from Electronic Parts 1994 March Flow acoustics Excessive Noise Preventer • Aeroacoustic Characteristics of the Vortex Ring with Small Vortisity in the Vicinity of the Vortex Core. Gas Ejecting Suppressor Device. Suppression of Jet Noise by Using a Device of Generating a Spiral Flow • Noise Generated by Turbulent Submerged Jet in Stratified Fluid. Noise Prediction by Axial Flow Fans. Reducing the Aerodynamic Noise from Nozzle-Outlet by Inclined Flanges • On the Cavity Tone in a Perforated Tube Muffler. Variation of Supersonic Jet Noise Characteristics in Different Aspect Ratio of Rectangular Exit Nozzles. Underexpanded Supersonic Jet Noise Reduction by Combinations of Tab and Ejector • Aeroflow Sound Generated from the Screw Gap of Slightly Loosened Connector of Compressed Air Pipes Noise propagation outdoors SoundProp - Fast, Accurate Prediction of Sound Propagation Under Varying Weather Conditions and Over Hard or Soft Surfaces • Propagation of Impulsive Low Frequency Sound and Response of Building Fittings. The Influence of Directivity of Point Sources on the Result of Prediction Environmental Noise from Industrial Plants • The Effect of Atmospheric Pressure on Measured Aircraft Noise Levels. Prediction of Noise Propagation During Upward Refraction Above Ground. Characteristics of Finite Amplitude Impulsive Sound on the Ground. The Study of Sound Propagation over an Impedance Plane in the Presence of Wind and Temperature Gradients. Outdoor Sound Propagation Over Non Flat Terrain under the Influence of Wind and Temperature Gradients. Long-Range Propagation of Low Frequency Noise Generated by the Thrust Reversers of an Aircraft SESSIONS Barriers Acoustic Performance of Parallel Traffic Noise Barriers- Noise/News International 35 Full-Scale Tests. Prediction of Earth Benn Perfonnance by the Boundary Element Method. Study on Noise Reduction by T-Profile Barrier. Main and Side Effects of Noise Protection Barriers in a Longitudinal Field Study. Effect of Road Traffic Noise Reduction by Plant Pots Fixing Low-Height Type Barriers. The Acoustic Perfonnance ofMultipleEdge Noise Barriers • Comparison of the Modelled and Measured Perfonnance of a Barrier Used for Environmental Noise Control. Scale Model Studies of New Type Highway Noise Barriers Physical phenomena Possibility of Prediction of the Acoustic Noise Caused by the Transmission Lines Corona Effect in Polish Conditions • Sound Energy Circulation in the Nearfield of a Finite Cylindrical Shell and a Free Circular Plate. Helmholtz Resonator: Silencer Element or Noise Source? • Numerical and Experimental Studies of Complex Sound Intensity Fields in a Dissipative Enclosure. On Sound Characteristics of Glass Fiber Ducts. Geometrical Acoustics as a Predictive Design Tool. Noise Scattering by Models of Vegetation-Study on the Phenomenon of Insertion losses Becoming Minus • Some Analytical Aspects of Structural-Acoustic Interaction Phenomena in a Closed Field • Pulse Propagation in Bubbly Fluids via Multiple Scattering Theory Duct acoustics, silencers & mufflers An Experimental Study on the Muffler of Resonator Type. Silencers for Air Intake and Exhaust System of Mechanical Draft Cooling Tower • Acoustic Models of Double Pipe Elements of Mufflers. A Study on the Interaction between Acoustic Resonance and Turbulence in Mufflers. APractical Method to Approximate the Sound Radiation from a Lined Circular Duct. New Broad-Band Silencers Composed of Resonant Type and Dissipative Type. Superior Noise Suppression for Incinerator Plants (Noise Control of the Aircooled Heat Exchangers) • High Intensity Discrete Low Frequency Noise Resonance Mufflers Hydraulic Design Principles • Calculation of Complex Silencer Perfonnances by Non-Linear Fluid Dynamic Simulation Models • Acoustic Effect of Micropore Muffler on Pulsed Jets and Ring Jets. The Influence of Eigentones in Intake and Exhaust Manifolds on Exhaust and Intake Noise Radiation Sound absorptive materials Single Number Ration of Acoustic Absorption of Perforated Bricks • Microperforated Panel at High Sound Intensity • Study of Sound-Absorption Coefficients, ex, ofAccessible and Cheap Materials Found in Brazil • Sound Absorption of Masonry Blocks. The Result Differences of the Detennination of Sound Absorption Coefficient by the Impedance Tube Method Based on Different Standards • Sound Absorber of Transparent Thin Film. Experimental study of the Frequency Characteristics of Sound-Absorbing Powder Materials. An Experimental Study of Pure-Metal Sound Absorber Based on Microperforated-Panel Construction. Absortion Coefficient of a Person in a Closed Room Vibration damping & isolation Numerical Prediction of Damping Properties of Polymers • Method of Optimization Transport Vibroisolating Systems and Experience of its Practical Application. Cut off Characteristics of Structure-Borne Sound by Hybrid Mass Damper • The Design of Vibration Isolating Structure Using Genetic Algorithm and Other Evolutional Programming Methods • Piston Machine Pipelines Vibration Attenuation by Using of 36 Noise/News International Compact Low-Frequency Pulsations Damper. Inadequacies in Some Elastomeric Isolation Pads Manufactures' Product Data. Evaluation of Vibration and Noise Using Scale Model of C-Frame Turret Punch Press. Sound Radiation from the Vibrating Plate with Damping Characteristics. Fonnulation of the Loss Factor for Flexural Vibration of Three-Layer Assembly with a Thin Cover Plate, Considering Extension/Contraction Strain in the Viscoelastic Middle Layer • Vibration and Structure-Borne Noise Reduction for Building with Isolation Systems. Damping Properties of MagneticVibration-Damper. Chain and Cable Wrap as High Frequency Dampers. A Study on the Vibration Isolation f the Car CDP Using Power Mixed Oil Damper. Analysis of the Effect of Damping Treatment of an Enclosure • Radiation Noise Reduction by Applying Vibration Damping Material. Improvement of Acoustic Characteristics of an Alminium Honeycomb Plate with a Damping Layer. Dynamic Vibration Absorbers used for Increasing Noise Transmission Loss of Aircraft Panels. Vibration Damping Properties and Test Methods of Laminated Damping Steel Sheets Structure-borne sound The Relative Contributions of Forces and Moments in Structure-Borne Sound Power Emission from Machines. A Study of Dynamic and Stability Characteristics of Joints Using Impedance Measurements. Experimental Study on Vibration Propagation in Water Piping System Connected with Pump. Coupled Acoustic Fluid-Structure Analysis Using Component Mode Synthesis (Application to the Interior Noise Problem of the Vehicle Cabin) • Transmission Path Analysis in View of Active Cancellation of Road Induced Noise in Automotive Vehicles • Calculation and Correlation of Vehicle Body Structure Acoustic Transparency. The Characteristics of Structure-Borne Sound from a Reinforced Concrete Wall with Mechanical Vibration and Transmission Loss Building acoustics: sound insulation Control of Noise in Rest Environments for Civil Houses: Analysis and Methods Proposed. Airborne Noise Acoustic Insulation of Double Panels. Regression Lines. A Study of Noise Control of Home Appliances Considering Acoustic Mode. Fonnulation for the Prediction of Plumbing Noise. On Sound Insulation of Thin-Walled Structure in the NonUnifonn Aerodynamic Field of Pressure Fluctuations. Sound Power Level of the Rain Noise Radiated from Lightweight Roofs. Variable Acoustics for Radio Studio 12 at the CBC Building in Montreal. Computer Design for Sound Insulation against Traffic Noise. Flanking Transmission in Building with Multilayer Partitions. An Acoustical Characteristics of an Automatic Sliding Sound Proof Door • Countenneasures on Blasting Noise Incident to Tunnel Construction. Analysis of Components of Noises in Large Open-Plan Offices in Japan. Noise Insulation Design Simulation of Glass Window in a Building and its Noise Measurement Cases. Behavior of a Light Weight Wooden Joist Floor at Low Frequencies • Noise Control Interior Design for Enclosed Atrium with Railway Stairwell. Case Study on Sound Insulation of Music Rooms in the House of Professional Musicians • Effect of Molecular Structure of the Interlayer on the Transmission Loss of Laminated Glass • Effects of Edge Damping on the Sound Transmission Loss of Glass Pane. Sound Insulation Structures in Auditorium Buildings Perception of sound The Measurement of Equal Loudness Contours Using a Di- 1994 March rect Scaling Procedure and the Validation by Equal Time Contours Measured Using a Simple Reaction Time Task. The Dose-Response Relationship with Noise- Induced Temporary Threshold Shift (NITSS) • Threshold of Hearing in Various Sound Fields. Equal Loudness Level Contours for Frequencies 20-1000 Hz at 10, 20, 40, 60, 80, and 100 phon Levels. Subjective and Objective Transformation Level between Free-Field and Diffuse-Field in Equal-Loudness Level Contours. Continuous Judgment of Level-Fluctuating Noise. Loudness Evaluation of HVAC Noise with Low Frequency Components • Loudness of Sounds Transmitted through Walls under Background Noise • Subjective Disturbance Perception of Various Ambient Noise Levels of a Mosque: A Mathematical Modelling Analysis. Factor Analysis on Subjective Evaluation of Drainpipe Noise. Experimental Study on Evaluation for Environmental Comfortableness Using Physiological and Psychological Method. Sound Level Meter Directly Capable of Evaluating Psychological Effects with "URUSASA" and/or "HUES" Scales. Thresholds of Sensation and Effects on Human Body of Impulsive Low-Frequency Sound • A Prediction Method of Psychological Impression Caused by Fluctuating Random Noise Based on Fuzzy Sets Theory • Vehicle Insertion Loss and Shift of Loudness. Laboratory Studies on Environmental Effects of Vehicle Noise • Psychological Transient Response to Low Frequency Noises. Trade-Off Effects in the Laboratory: A High Number of Soft Aircraft Did Not Exceed a Low Number of Loud Aircraft in Psychological Noise Effects. Annoyance of Meaningful Sound in Broadcast Listening • On the Influence of the Ordering of Noises in Sequences for Paired Comparison Judgment Utilization. Low Frequency Sound Quality and HVAC Systems. The Influence of Noise on Students When Working with Videoterminals Psychological effects of noise Cost Efficient Noise Reduction around Large Plants Using Genetic Algorithm Optimization. Noise Control and Economic Analysis. Evaluation of the Cost of Noise Pollution. Noise and Subjective Symptoms ofInhabitants Noise surveys Spatial Distribution in Outdoor Noise Levels in the Historical Center of a Large Size Italian Town. Spatial Distribution of Environmental Noise Peaks. A Study on Selection of Measuring Points on Noise Survey by Using Noise Simulation Community reaction to noise The Failure of Day-Night Average Sound Level for Intrusive Noise • Community Response to Noise from Short Term Military Aircraft Exercises at Airports Serving both Civil and Military Traffic. Cross-Cultural Study on Community Response to Traffic Noise (2): Surveys in Gothenburg. Sweden and Kumamoto. Japan. The Fact-Finding Inquiry of the Management of Complaints with Indoors Measuring. Aircraft Noise Amelioration Schemes-Attitudes of Residents to the Options • On Dose Response Curves of Annoyance to Aircraft Noise. Social Survey of Public Opinion on Sound Environment in Yokohama-Part I. Sounds Liked or Disliked and Sounds Representing Yokohama or Residential Wards. Survey on Environmental Noise and Human Response to Environmental Sounds • Study on Annoyance and Trouble Caused by Pollution in a Residential Area in a Megalopolis by Analyzing Free Response Data. Management of Complaints Caused by Noise and Other Pollution Phenomena Filed by Residents Flowing into Industrial Areas. Results of 1994 March a Questionnaire Survey of Citizens' View on Neighborhood Noise in Sendai City. Health Effects on the Residents due to Aircraft Noise around Ladena U. S. airbase in the Ryukyus • Cross-Cultural Study on Community Response to Traffic Noise (1): Surveys in Songkhla, Thailand and Tomakomai, Japan Measuring techniques: Source localization Developments in Digital Signal Processing for Handheld Portable Electroacoustic Instrumentation. Time Domain Contribution Analysis. ASignal Processing for Wind Noise Cancellation by Using a Wide Sense Digital Filter in the Low Frequency Sound Measurement • Identification of Machine Noise Radiators Using Intensity, Holography and Modal Analysis Techniques • Identification of Industrial Noise Sources with Finite Band of Frequency Based on Spherical Wave Model. Improvement of Acoustical Detection of Aircraft Position in Flight Measuring techniques Ultrasonic Measurements on Acoustic Porous Materials • Acoustical Instrumentation-Standards and Accreditation. New Approach for the Measurement of the Acoustic Properties of Sound Absorbent Samples. Microphones, Preamplifiers and Calibration: New Products and New Possibilities. A Study on Repeatability for Sound Absorption Measurements in Reverberation Chambers. Assessment ofLAeqLevel of Urban Noise by Means of Time History Pattern. Measurement of Airflow Resistance by DC Method and AC Method • Average of Sound Pressure Measurement in a Room Using a Double Pendulum • A Sensitivity Compensation Method for a Three-Dimensional Sound Intensity Probe. The Development of Instruments for the Measurement of Sound Intensity Using 3-Dimensional Microphone Probe. Two-Microphone Impedance Tube Measurement Method: How to Obtain the Speed and Convenience of the Technique Improving Accuracy. Error Analysis ofthe Spatial Fourier Transform Method for Measuring Absorption Coefficients at Arbitrary of Incidence • Introduction of Hand Held Instrument for Direct Assessment of Impulse and Pure Tone Correction Factors. The Bimorph Piezoceramic Transducer for Mechanical Vibrations. Experimental Study on Resonance Frequency of Horizonta1 Vibration Pickup. A Measuring Method for Sound Reflection or Absorption Coefficient by Using Two Closed Microphones with Different Sensitivities. Bending Vibrations of Ribbed Plates. Prediction of Airborne Noise Acoustic Insulation of Light Panels. A SEA Model for Predicting the Insertion Loss of Noise Source Enclosures. Analysis of Acoustic Characteristics of Automobile Hom by Simplified Vibration Model • Vibration Response of Foundation of Wooden House. Use of Array Techniques in Automotive Industry. Finite Frequency Band Averaging Effects in SEA • Exhaust Systems: Comparing Boundary Element and Finite Element Models with Experiments • The Finite Element Treatment of Large Size Coupled Problem Using Unequal Meshes. A Comparative Study of the Analysis of Transient Acoustic Problems Using Finite Element and Boundary Element Methods. Prediction of Transmission Loss for Railway Structures Using Numerical Technics. Reduction of Spatial Windowing Effects in Acoustical Holography. On-Line State Estimation Algorithms for Road Traffic Noise Indexes Under the Contamination of Background Noise. Prediction of Output Probability Distribution for Arbitrary Sound Insulation Systems Based on the Introduction of Hierarchical Parameter Differential Operator and Its Application to a Double Wall with Sound Bridge • Application of a Statistical Inverse Method to Improve Parameter Estimation in Statistical En- NoiselNews International 37 ergy Analysis Models • A Hierarchical Digital Filter with a Smoother for Measuring the Non-Gaussian Acoustic Signals Under Background Noise and Its Applications to the Reverberation Time Measurement • An Evaluation Method of Probability Distribution on LAeq for Nonstationary Environmental Noise Based on Its Level Statistics. An Introduction of Regression Model in Hierarchical Form for the Response Probability Prediction of a Working Environmental System. Energy Flow within Three Subsystem Configurations • Measuring Aerodynamically Generated Noise from a Wind Turbine Using a Microphone Array. The Energy Finite Element Method of Coupled Structures • Measurements by Means of Microphone Array of Fast Passing Sound Source. Change of Source Impedance due to Close Fitting Rigid Screen • The Influence of a Rigid Barrier on the Radiation Efficiency of a Sound Source. Finite Elemental Analysis of Sound Field in Rooms with Sound Absorbing Materials • Error Analysis for Prediction of Acoustic Fields Using Planar Acoustic Holography and the Application of MEW (Minimum Error Window) for the Minimization of Bias Error • Numeric Prediction of Impulse Responses of Sound Fields in Small Rooms and Cabins • Equivalent Sphere Method for Prediction ofRadiation Field of Sound Source from Measurements of Diffraction Field Characteristics • Finite Element Formulation for Sound Transmission through Finite Double Panels Lined with Elastic Porous Materials. Application of Statistical Analysis to Determinate Forecasted Model of Acoustical Impact on Road Rank Name of Hotel Single Room (JPY) 1 Twin Room (JPY) Numerical analysis & modeling Matrix Model of Diffuse Reflection (MMDR) • Modeling of Enhanced Sound Propagation at a California Airport. Numerical Modeling in Geometrical Acoustics with Applications in Industrial Noise Control. Mapping Neural Network and Application to the Prediction of L eq • Modeling for Environment Noise by the Dynamic Model. Rende-Cosenza Highway: Forecasting Calculation of the Acoustical Reclamation. Correlation of Acoustic Model Analysis with Operating Data for Road Noise Problems. Noise Prediction in Urban Area by a Fuzzy Logic Approach. Numerical Analysis of Sound Propagation over Wide Barriers. Doppler Effect for a Car Moving in a Tunnel. Using Subjective Response Data to Train an Artificial Neural Network Model of Human Annoyance to Noise • Sensitivity Calculations for BroadBand Acoustic Radiated Noise Design Optimization Problems • Statistical Energy Analysis of Vibration and Sound Radiation of Multisectional Cylindrical Shells • StructureBorne Sound Transmission in Complex Systems Using Iterative SEA-Based Technique. The Analysis of Bending Vibration of Plate Combinations at Low and High Frequencies • A State Estimation Method Based On the Wide-Sense Digital Filter Employing Higher Order Correlation Information for the Reverberation Curve in the Room Contaminated by a Background Noise. Nearfield Acoustical Holography for the Visualization of Interior Sound Fields. The Effect on Prediction Accuracy of Computer Modelling of Sound Distribution in Enclosed Spaces Using a Reduced Number of Rays 1 Access to Sakura~-cho Phone (all +81) Station and some comments A Yokohama Grand Intercontinental Hotel 22000 24000 Located adjacent to the Convention Plaza 452232222 B-1 B-2 Breeze Bay Hotel Shin-Yokohama Prince Hotel 12100 11 000 18700 16500 5-minute walk I-minute walk & 15-minute subway ride 452535555 45471 llll C-l C-2 Mandarin Hotel Chatelet Inn Yokohama (Main Building) (Annex) San-Ai Yokohama Hotel 8200 15400 IO-minute walk 452433131 7800 7800 7300 15000 15000 15000 5-minute walk & 5-minute subway ride IO-minute walk 456814800 5500 -7 000 N.A. Within 30-minute train ride 3 C-3 D Several hotels in the Yokohama area 452424411 1 Rates are per room per night in JPY. Meals are not included. A, B or C hotel rates include service charges and do not include VAT and local tax (3 - 6%). D hotel rate includes a service charge and tax. 2 From Sakuragi-cho station, Pacifico Yokohama is a 15-minute walk or a short bus ride. 3 You cannot always expect English-speaking staff to be on duty. 38 Noise/News International 1994 March Signal signature analysis & diagnostics The Use of Wavelet Transfonn for Analysis ofTransient Noise • A Correction of Acoustic Systems Pulse Response Using Inverse Filters • Generation of Stationary Non-Gaussian Noise Sequences with Specified Power Spectra. On Line Quality Inspection System for Electroacoustic Products • Measurement of Cavitation Noise as a Diagnostic Tool for Perfonnance Monitoring of Hydraulic Turbines. Development of New Sensor Using Sound to Detect Mistransfering Plural Sheets. Development of Experimental Techniques to Minimize the Leakage Errors Involved in FFT Based Measurements • Rotating-Machine Diagnosis Based on the 2nd and 3rd Order Spectral Analyses of Sounded Noises. Noise for Process Control. Classification of Abnonnal Noise Factor on Small Motors with Neural Network. The Use of Shorter Time Window for Source Signal in Impulse Response Estimation by Cross Spectral Technique. Estimation of Power Spectral Density by Singular Value Modification. Wavelet Analysis of Nonstationary Acoustic and Vibrationary Signatures Test facilities and equipment Development of an Alternative Metal Anechoic Wedge • Diffusion in Reverberation Chambers Investigated by a Room Acoustic Computer Model • Helpful Measurement Tools Based on Flexibility and Focused Design • Diffusion in Reverberation Chambers Investigated by a Room Acoustic Computer Model Standards Industrial Noise and Solution of Noise Abatement Problems in Lithuania. Comparative Severities for National Noise Regulations • Aircraft Noise. Particularly Annoying Local Traffic at Viborg Airfield. Noise Measurements for the Development of Spanish Environmental Noise Regulations HOTEL ACCOMMODATIONS As the official agent, Kinki Nippon Tourist Co., Ltd. is holding blocks of rooms at hotels in Yokohama during the congress. The following have been selected for the participants. APPLICATION Reservations should be made by completing and returning the enclosed Hotel Reservation Form, indicating the name of the hotel, number of nights you will stay and the number of rooms desired, to Kinki Nippon Tourist. This form must be returned before 1994 June 23. No reservations will be confirmed without a deposit and the handling charge of JPY 1000, which covers costs for correspondence, etc. Hotel assignment will be made on a first-come, first-served basis. However, if the hotel you desire is fully booked, a room in a hotel belonging to the category as close as possible to your choice will be offered. Upon receipt the form and remittance, confirmation will be sent to you after 1994 June 23. 1994 March Return to: INTER-NOISE 94 The person in charge: E. Tanimura / M. Nakamura Inbound Travel Division Kinki Nippon Tourist Co., Ltd. Takakyu Bldg. 7F, 19, Kanda-Matsunaga-cho, Chiyoda-ku, Tokyo 101, Japan Telephone: +81332536131; FAX: +813 3255 7128 PAYMENT Payment must be made in Japanese Yen. Personal checks are not acceptable. Bank transfer to: The Dai-ichi Kangyo Bank, Okachimachi Branch Account Name: INTER-NOISE 94 Account Number: 1489635 Bank draft payable to: INTER-NOISE 94 Credit Card (VISA, Master Card or AMEX only) Please fill in the credit card form at the bottom of the application form. CANCELLATION In case of cancellation, a written notification should be sent to Kinki Nippon Tourist Co., Ltd. We will refund your deposit after the following cancellation and handling fees are deducted. Up to 14 days before the check-in date:no charge 13 - 7 days before the check-in date: 10% of the daily room charge 6 - 2 days before the check-in date: 40% of the daily room charge Less than 2 days before or no notice: 100% of the daily room charge Youth Hostel For the least expensive stay in Yokohama, a Youth Hostel is available within a IS-minute walk from Pacifico Yokohama. If you wish to stay there, reservation should be made personally and directly to the address below in writing enclosing a return postcard or self-addressed envelope with international postal coupon. Because of very limited capacity, send your reservation request immediately with your name, age, sex, date of arrival and departure (the number of nights), and whether or not you wish to have breakfast. Kanagawa Youth Hostel: I-I Momijigaoka, Nishi-ku, Yokohama, 220 Japan NoiselNews International 39 Hotel Reservation Form Form B Reg. No. . Received I INTER-NOISE 94 Aug. 29 - Aug. 31, 1994 Deadline: 1994 June 23 Please fill out using a typewriter or block letters, and return this form to: Klnkl Nippon Tourist Co., Ltd., Attn: E. Tanlmura, M. Nakamura, Inbound Travel Division 19, Kanda-Matsunaga-cho, Chlyodak-ku, Tokyo 101 JAPAN Tel: +81 3 3253 6131, Fax: +81 3 3255 7128 Title 0 Prot. 0 Dr. 0 Mr. 0 Ms. Family Name: First Name: Affiliation: _ Tel: _ Fax: _ Mailing Address: _ Country: _ o Office 0 Home Accompanying person(s) 1. 0 Mr. 0 Ms. Family Name 2. 0 Mr. 0 Ms. Family Name _ First Name _ _ First Name _ Hotel Accommodations Rank Name ot Hotel Single Yokohama Grand Intercontinental Hotel JPV 22000 A JPV 12100 B-1 Breeze Bav Hotel JPV 11,000 B-2 Shin-Yokohama Prince Hotel JPV 8.200 C-l Mandarin Hotel JPV 7,800 C-2 Chatelet Inn Yokohama (Main/Annex BldQ.) JPV 7.300 C-3 San-ai Yokohama Hotel JPV 5,500-6,800 Several Hotels In Yokohama Area D Hotel Category D A D B-1 0 B-2 Single room(s) Twin room(s) 0 o o C-l 0 C-2 Check-In date: Check-out date: 0 Twin JPV 24,000 JPV 18700 JPV 16,500 JPV 15,400 JPV 15,000 JPV 13,000 -----0 C-3 Deposit JPV 20000 JPV 20000 JPV 20,000 JPV 15,000 JPV 15,000 JPV 15000 JPV 15,000 D tor night(s) Payment: Payment should be made only In Japanese yen (Personal check is not accepted) room(s) Hotel Deposit (A or B) JPV 20,000 x JPV room(s) Hotel Deposit (C or D) JPV 15,000 x JPV JPV 1,000 Handling and Communications Charge TOTAL o I have enclosed a bank draft of JPV payable to INTER NOISE 94. through bank on by direct transfer in Japanese yen to the following bank Name of Bank: Dallchl Kangyo Bank, Okachlmachl Branch Account No: 1489635 Account Name: INTER NOISE 94 I attach a copy of bank receipt to this form. 0 I use the following credit card slip. o I have remitted the sum of JPV o o VISACARD o MASTER CARD(·) o AMERICAN EXPRESS CARD Account No.: I I I I I I I I I I I I I I I I Amount Good ¥ _ ,, ,,, ,, Thru type....... Thil will be PluM r.. 0UI1Ilt If. . wilhin lhe bold .... In block or dMmed 1rwdd.1Ilt PIlI oIl1lllll.1l1 III1lnd In Illy way. '8*~"o( -~-'h- Name of Holder: t'C7>bllJ. IRtlItenc:e: Date: .D.• I Signature: Date: Signature: I~ 15? i/1';" :IJ-t: I _ 0 I CONGRESS REGISTRATION FORM FEES: The INTER-NOISE 94 pre-registration fee is IPY 45000 until 1994 May 31. After that date and atthe Congress, the registration fee is JPY 50 000. The registration fee includes a set of congress proceedings, participation in the technical program and exhibits, the opening and closing ceremonies, morning and afternoon coffees and the reception on August 29, 1994. For undergraduate students and masters' course students, the registration fee is halved. Please attach a certification letter of your professor if you would like to get this special treatment. NOTE: Authors of technical papers must return a registration form with one full registration fee for each paper to the Congress Secretariat in Sendai when the manuscript is submitted to the Editor in Osaka for publication in the congress proceedings. The authors' deadline for receipt of manuscripts and payment of registration fees is 1994 April 15. The accompanying persons registration fee is JPY 4 000 (JPY) and includes attendance at the opening and closing ceremonies, a half-day bus tour around Yokohama and the reception. PAYMENT: All registration fees should be sent to the Congress Secretariat. We accept major credit cards as shown below. You may also use International Postal Money Order and bank transfer to our bank account to send the fees (Personal check, bank draft and travellers' check are not acceptable). Remittance must be WITHOUT CHARGES TO THE PAYEE. (Please type or print.) Family Name First Name _ Profession/title _ Institution/Organization/Company _ Address _ City State Zip code _ Country ,ext. Phone _ Fax _ Accompanying persons name(s): 1)--------------------------------2) _ 3) _ If you submit one or more papers, please put paper title(s) here: _ Date, Signature, ADVANCE REGISTRATION Price (JPY) DELEGATES REGISTRATION FEE on or before 1994 May 31 45000 after 1994 May 31 50000 Number of Papers Total (JPY) STUDENTS REGISTRATION FEE on or before 1994 May 31 22000 after 1994 May 31 25000 Number of Persons ACCOMPANYING PERSONS FEE TECHNICAL VISITS (on 1994 September 1) 1994 March 4000 Tour I Fujitsu & RICOH 6000 Tour 2 Nissan & Taisei 6000 Tour 3 Kajima & NTT 6000 • 1st Choice: Tour • 2nd Choice: Tour Total (JPY) • 3rd Choice: Tour Noise/News International 41 ACCOMPANYING PERSONS PROGRAMS 1. Short bus tour around Yokohama. [on August 29 (pm), 30 (am), 31 (am)] date Price Number of Total (JPY) persons (JPY) Accompanying persons Delegates free 3000 2. A tour to Kamakura (on August 30). 9500 3. A tour to Asakusa and Yedo Memorial Museum (on August 31). 9500 4. Tea Ceremony [on August 30 (pm)]. free 400 BANQUET (on 1994 August 30) 10 000 TO BE PAID GRAND TOTAL Japanese Yen REMITTANCE Date Name of Bank o I have remitted the above grand total on through my bank deposit account ofINTER-NOISE 94 Secretariat, AlC 315-1151747, Asahi Bank, Sendai Branch. Date o I have remitted the above grand total on o I agree to remit the above grand total in Japanese yen by Credit Card. to the by International Postal Money Order. Credit Cards o VISA 0 MASTER CARD 0 DINERS 0 AMERICAN EXPRESS month Number: year Expiration Date:_ _--L_ _ Signature _ Note: Usage of VISA or Master Card is preferable by tbe Secretariat. IMPORTANT Hotel Reservations: Please use the Hotel Reservation Form and send it to KINKI NIPPON TOURIST CO., LTD. INSTRUCTIONS This form must be typed or printed. Please send this form to: INTER-NOISE 94, Congress Secretariat, Sane Lab., R.LE.C., Tohoku University, 2-1-1 Katahira, Aoba-Ku, Sendai, 980 Japan. Please retain a copy of the completed form for your records. If you send this form by FAX, please send the original by air mail immediately. 42 NoiselNews International 1994 March European News A. Cops, European Editor EUROPE Activities of the European Acoustics Association. The European Acoustics Association (EAA) consists of 11 acoustical societies (Belgium - ABAV, Denmark - DAS, FinlandASF, France - SFA, Germany - DEGA, Great Britain - lOA, Italy - AlA, The Netherlands - NAG, Norway - NAS, Spain - SEA, and Sweden - SAS). EAA will have the status of an European Economic Interest Group (EEIG) within the European Community (EC). The purpose of the group is: • to promote and represent the science of acoustics in Europe and around the world; • to publish a journal on acoustics titled Acta Acustica - to be the property of the group; • more generally, to carry out any activity which could relate, directly or indirectly, to the purposes described above, provided that this activity is approved as such by the members. The headquarters of this group will be in Liege (Belgium); the registration was effective at the end of 1993. Such a group operates as a commercial enterprise under the ownership of its member societies and provides the base for many activities in acoustics which earlier European groups could not accomplish. The organization will function with a council of the presidents of the individual acoustical societies, a chairman, Professor Jens Blauert (Germany), a manager, Armand Dancer (France), and a controller, Peter Wheeler (United Kingdom). Each acoustical society will pay a modest entrance fee, and the societies, as a group will bear the cost of registration of the European Economic Interest Group, the cost for registering the Acta Acustica trademark, and the Editor-in-Chief expenses for Acta Acustica. In 1993, Acta Acustica was distributed to nearly 2000 subscribers who are members of the 11 national acoustical societies. Libraries and other organizations must purchase the periodical from the publisher. A future goal is to place copies of Acta Acustica on the desk of every European acoustician. For 1994, the plan is to publish the periodical bimonthly with about 200 pages in each issue. The objective is to have a publication that serves as a high quality scientific journal, an engineering journal of applied acoustics, a communications medium for research briefs and product news, a newsletter for the 11 societies and for EAA itself, and a source of commercial information. It is an objective of EAA to include in its membership all European acoustical organizations. The Swiss Acoustical Society recently decided to join the group. Special arrangements are being made for societies in Eastern Europe because of monetary problems. Some services will be offered free of charge to these organizations, and some members may receive Acta Acustica free of charge. On 1996 April 1-4, the EAA will organize a European Con1994 March gress covering all topics in acoustics. (Noise will not be emphasized- Ed.) A number of national meetings will be merged into this event which will be held in Antwerp, Belgium. The Congress will be organized by the Belgian Acoustical Association. Registration fees will be kept as low as possible to foster scientific and cultural exchanges, especially among younger acousticians. The third General Assembly of the EAA was held on 1993 October 4 in Frankfurt, Germany; the next meeting will be held on 1994 June 04 in Milano, Italy. LITHUANIA Lithuanian Acoustical Society Joins International INCE. The Lithuanian Acoustical Society has become a Member Society of I-INCE. The society was formed shortly after the Republic of Lithuania was reestablished an independent state. One of the objectives of the new society is to maintain contacts with similar societies and organizations in other countries. The society has eight technical groups representing different areas of acoustics; two of the groups are concerned with noise: the groups on vibrations and noise in industry and on environmental noise. The president of the Lithuanian Acoustical Society is Professor Danielius Guzas. SOUTH AFRICA Institute Changes its Name. In accordance with the latest trends in naming organizations and institutes, it has been decided to change the name of the Institute formally from The South African Acoustics Institute to the abbreviation of these words. The institute will now be known merely as SAAI which will mean the Southern African Acoustics Institute to make it known that the Institute is no longer confined to the boundaries of South Africa, but aims to serve the entire Southern African Continent. Automotive Noise and Vibration Meeting is Held. A presentation to SAAI on Automotive Noise was made on 1993 June 18 at the product development section of Nissan SA (Pty) Ltd. The speakers were D.C. Van der Walt and M. Buffa. The speakers received their initial training at the South African Technikon and this was followed by a period of training at the Institute of Sound and Vibration Research at the University of Southampton in England. For this, both were awarded an MSc degree. The lecture was followed by a demonstration of a motor car to which the required sensors had been fitted and which carried analyzing and recording instruments enabling tests to be performed with the car on jacks or on the road. Modem computer simulation of resonant movements of various components of a Noise/News International 43 vehicle was demonstrated using the extensive facilities of the manufacturer by whom Messrs. Van der Walt and Buffa are employed. FRANCE Noise as a Public Health Problem. 6th International Congress. The materialfor this report was provided by Dr. Michael Vallet, Research Director at the Laboratoire Energie Nuisances, part ofFrance's Institut National de Recherche sur les Transports et leur Securite (INRET-LEN). "Noise in Europe is becoming a major preoccupation ofpeople in general," said Dr. Vallet. To support this claim and disseminate and exchange the latest results of noise research worldwide, Dr. Vallet organized the 6th International Congress on Noise as a Public Health Problem in Nice, France on 1993 July 5-9. The theme ofthe congress was Noise as a Public Health Problem. Current research into auditory and non-auditory phenomena was highlighted. Dr. Michael Vallet Dr. Vallet also gave a presentation on the results ofthe Congress at INTER -NOISE 93, the 1993 International Congress on Noise Control Engineering, on 1993 August 24 in Leuven, Belgium. His paper appears on pages 51-53 of the INTER-NOISE 93 Congress Proceedings. A report on the congress by W Dixon Ward has been published in the Journal of the Acoustical Society ofAmerica (1. Acoust. Soc. Am., 94, 3026-3028, 1993). In Dr. Ward's report, the activities ofthe nine research teams are highlighted. The congress was organized with the support ofthe International Commission on the Biological Effects ofNoise (ICBEN). The new ICBEN Board consists of Professor Birgitta Berglund and Professor Shirley Thompson, Chairpersons, Professor Barbara Griejhan, Secretary, andDr.Alain Muzet, PastChairman.-Ed. The 6th International Congress Some 400 participants, including experts from a wide range of private and public institutes, universities, and companies from all over the world attended Noise and Man '93. The congress program included 50 sessions, 160 papers, and 2 workshops, all centered around two main themes: noise and its effects on auditory health, and environmental noise and its psychosomatic effects. Research results were presented under nine main topics (which reflected the nine international teams of ICBEN), with a series of invited and contributed papers: noise induced hearing loss, noise and communication, non-auditory physiological effects due to noise, influence of noise on performance and behavior, noise disturbed sleep, community response to noise, noise and combined agents, regulations and standards. Noise Abatement. In addition to being a forum for scientific research work done in each of the nine sectors covered, the congress was also aimed 44 at influencing noise abatement policies, in the context of public health (i.e. the workplace) or as a factor affecting the quality of life. Hence, the presence of a number of key politicians, including the French ministers of the environment, research, health, and defense, as well as representatives from the European Community'S DG-XI and international bodies such as WHO (World Health Organization). Mr. Perera Manzanedo (DG-Xl's Urban Environment Unit) welcomed this congress for concentrating on the effects of noise on man and his well-being. He admitted that European Community noise policy to date has focused on sound emissions and been more influenced by environmental concerns and harmonization of product standards. However, the European Community is interested in improving noise abatement by reducing permissible noise levels. The 5th Environmental Action Program (adopted by the Council on February, 1993) (See the Editor's View in this issue.-Ed.) has broken new ground in European Community noise policy by setting noise quality objectives up to the year 2000 using nighttime equivalent Aweighted sound level. A more comprehensive noise policy will depend on collaboration with bodies like WHO, as well as further research. In his introduction, Chairman Vallet emphasized the importance of noise research in ensuring public authorities are kept aware of the problems of noise exposure for people. In his view, regulations probably do not go far enough to protect the environment, and "they are not always applied to the fullest extent - particularly in the workplace." On the other hand, stringent regulations may also cause difficulties: "the conclusions of scientists as to the most suitable noise thresholds may appear more unrealistic than practical and do not often consider the costs involved." He also pointed out how research by his own team is being put to good use: France's civil service is making decisions and preparing regulations to protect people from transportation noise, thanks to scientific data from INRET-LEN. Today in France, for example, 10 percent of the country's budget for motor way construction is spent on protection from noise; and for the last two years, all2-wheeled vehicles have been fitted with fixed exhaust pipes, to prevent the illegal exhange of these pipes. Aircraft Noise The perennial problem of aircraft noise is being widely studied throughout Europe, reflected by a total of 12 presentations at this congress. In the UK, a major field study was carried out in 1991 by the CAA (Civil Aviation Authority) university teams to obtain objective measurements of the effects of aircraft noise on the sleep to people in their homes near 4 United Kingdom airports. The sleep-EEGs (electroencephalograms) of 400 subjects were monitored for a total of5742 subject nights. In Germany, research has been carried out on the effects of aircraft noise on children, using a wide-ranging battery of tests, including measurement of overnight urinary catecholamines and cortisol, cardiovascular functions, memory and performance tests, etc. Aircraft noise studies have resulted in various models for critical nighttime noise levels (Germany). In the United King- Noise/News International 1994 March dom, recent studies allowed comparisons with 1982 data on general perceptions of aircraft noise. It was generally concluded that "no clear relationships emerge between aircraft noise exposure and reported (sleep) disturbance," although effects varied greatly between people, depending on age, sex, personality and so on. For example, according to the CAA, men are more likely to be disturbed during sleep by aircraft noise events. The congress also saw a vigorous debate on aircraft noise, with one group suggesting that WHO noise recommendations should be relaxed because of the economic implications of further restrictions. voices speaking at once are apparently preferable to just one or two, as they create a more even (and therefore less distracting) background noise. Future noise abatement may actually involve adding more voices or sound to reduce disruption! Protection of Habitats Noise habituation experiments on animals are also yielding interesting results, with potential human applications. Although loud noise is known to damage hearing, it is now apparent (from work in France, Sweden, and elsewhere) that some protection may be afforded by pre-exposure to moderate levels of noise. Physiological ERects of Noise Noise Control Measures Presentations by groups in several countries (including USA, Germany, and the United Kingdom) highlighted new studies into non-auditory physiological effects of noise. This research is now being improved, thanks to the use of sophisticated technical methods to investigate the effects of noise on physiological subsystems (e.g., coronary blood flow, cerebral circulation), thus complementing traditional laboratory studies on stress mechanisms using animals and humans. The results of European work on non-auditory physiological effects indicate that noise does stimulate the autonomic nervous system to a higher ergotropic level; consequently, noise can be considered a stressor. However, current findings do not yet support a consistent relationship between noise exposure and harmful physiological effects. More studies are needed to confirm the hypothesis that prolonged noise exposure increases the risk of hypertension or ischemic heart disease. The congress had good news and bad news about noise prevention and reduction measures aimed at protecting populations from the noise of new transportation infrastructures in a large number of industrialized countries. On the plus side, data provided by INRETS showed that measures (such as the erection of sound barriers and noise embankments along roads and railway lines in urban/suburban areas) have been successful in two ways: first, they have reduced noise levels by from 3 dB in some cases to 20 dB in other cases. Secondly, these measures have had a very significant social impact; surveys show that communities protected from noise exhibit less overall or behavioral annoyance, and also begin to reuse formerly abandoned housing and adjacent areas (gardens, playgrounds, etc.). In France and Germany, new actions include the adoption of lownoise road surfaces and traffic speed limits (e.g., Tempo 30 in Germany and Zone 30 in France). However, positive effects are sometimes counterbalanced by induced negative effects, including greater public awareness of previously unnoticed noise from other sources (such as neighbors), and the visual ugliness of sound barriers. As a result, researchers will have to look again at their methods of evaluating the effectiveness of noise abatement prevention and reduction measures, possibly adopting a multi-criteria approach. Noise in CRices Although high noise levels are apparently more troublesome for people than lower levels, it is likely that there will be an increase in research on the effect of lower noise levels in the home and office. Researchers are interested in both the physiological and psychological reactions to the presence of noise and not necessarily to its level. In Nice, a number of groups presented their findings on the effects of noise on human performance. Researchers at the University of Wales, for example, have examined the distracting effects of low levels of sound, particularly speech. New techniques included improved sound measurement techniques (artificial head systems to measure spatial cues) and the latest cognitive psychology. Regarding voice pollution, an increasingly-important area of research, new results are now filling gaps in previously ambiguous data (noise was said to deteriorate or improve mental performance, or neither!). For example, evidence is emerging that although speech is more disruptive to human concentration than meaningless noise, it is neither a sufficient nor necessary condition. Meaningless sounds with sharp energy or pitch changes have been found to be equally disruptive, since they more closely resemble human speech. However, new research contradicts recent pessimistic findings about voice pollution and provides hope for office workers concerned with noisy colleagues: it now seems that the more voices heard, the less the disruption (a phenomenon known as babble speech). Eight 1994 March The Congress Proceedings The three volumes of the proceedings are now available from INRETS for FFR 500. Contact Dr. Michel Vallet, INRETSLEN, 109, Avenue Salvador Allende, Case 24, 69675 Bron, France. Telephone: +33 72 36 23 42; FAX: +33 72 37 68 37. NORWAY Opening Address by the Chairman to the 16th Plenary Meeting of ISO/TC 43/SC1, "NOISE." The following article is excerpted from the remarks of Dr. Klaus Brinkmann to the Plenary Meeting ofISO/TC 43/SC1, "NOISE", in Oslo,Norway on 1993 June 02. - Ed. This is the first meeting ofISO/TC43/SC I after the magic date of 1992 December 31 which was intended to be the deadline for the completion of the European internal market. The day passed and most European citizens realized that their daily lives were not much affected by the event. Some of us will have noticed this with relief, others may have been somewhat disappointed. The suspicion of non-Europeans that a well established "Fortress Europe" might exist by the end of Noise/News International 45 1992, fortunately did not prove true. And some European countries like our host country did not even make up their minds whether they would prefer to live inside or outside the fortress, if any. In the field of acoustical standardization, everybody within this committee did his utmost to avoid any separation between Europe and other parts of the world. As we will hear in some more detail from the Secretariat, more than 50 work items are presently included in the program of work of the corresponding European Committee on Acoustics, CENrrC 211. Only one of these 50 items is exclusively related to European legislation, and consequently has no international equivalence. All the other European Standards in our field are or will be based on ISO documents prepared by ISOrrC 43 and its SCI. This, is in fact, a very fortunate situation. The European need for standards in the field of machinery noise, however, has placed an additional burden on the Working Groups and especially on the Secretariat of this Committee. Since the last plenary meeting in Sydney, Australia in 1991 December, a total of 38 documents has reached the next stage within the development of an International Standard. This is an incredibly large number and means an increase by 40% compared with the previous period. If you compare the number of documents to the periods before 1991, you will notice an increase by more than 200%. Even more impressive, however, is the number of 21 Draft International Standards issued since the last meeting versus 3 DISs issued on an average in the periods before. This is really fantastic and we have very good reason to congratulate our Working Groups and especially the Secretariat on its success. Please realize that the staff capacity of the Secretariat has been unchanged for many years. More than half of these DISs are of special European concern and were submitted to parallel processing in ISO and CEN according to the Vienna Agreement. Suffering from some initial difficulties in interpretation, the procedure has now come fully into force. In general everything runs as smoothly as expected though some surprising voting results appear now and then. In one case, for instance, the results were different at the international and the European level, making the decision on the further treatment of the document a little delicate. At this meeting, another 7 Committee Drafts will be presented with a view to approval for circulation as Draft International Standards. At the current speed, we may assume that the great majority of necessary acoustical standards in the field of machinery noise will be available in a very few years. This will certainly not mean that the Secretariat and acoustical experts will suffer from underemployment, since continuous updating of standards will be required. However, the period of hectic activity may then be over which may give us some time to reflect on the future work of this Committee, e.g. in the field of environmental noise. RUSSIA At its meeting in 1993 August in Leuven, Belgium, the International INCE Board of Directors voted to designate as an Inter- 46 national INCE Symposium the Second International Symposium 'Transport Noise 94." The symposium will be held in St. Petersburg, Russia on 1994 October 4-6, and will be organized by the East-European Acoustical Association. The symposium is also being sponsored by the Krylov Shipbuilding Research Institute. A. Nikiforov (Russia) and M. Heckl (Germany) are serving as co-chairmen. The symposium will be held in the Congress Hall of the Academy of Sciences; papers will be presented in both Russian and English, with English preferred. Simultaneous translation will be provided. Delegates will receive a proceedings book at final registration. The registration fee will be USD 280 before 1994 July 30, and USD 330 after than date. Participants from the former socialist countries of Eastern Europe may register early for USD 100, and for USD 120 after 1994 July 30. It is recommended that participants stay at the hotel St. Petersburg where room rates will be USD 75 single and USD 95 double. Other hotels in St. Petersburg will offer lower rates. Participants from Europe, African countries, and Israel should register through Professor Tor Kihlman, Applied Acoustics, Chalmers University, S-412 96 Gothenburg, Sweden. Participants from North America, Latin America, Asia, and Australia should register through Professor Malcolm Crocker, Department of Mechanical Engineering, 202 Ross Hall, Auburn University, Alabama, USA. Further information on the symposium can be obtained from The East European Acoustical Association at the address given in the NNI Directory on page 62 of this issue. BELGIUM Short Courses follow INTER-NOISE 93 in Leuven. A course on Modal Analysis Theory and Practice was held at the Catholic University of Leuven, Leuven, Belgium, on 1993 August 30 Sept 01, following the INTER-NOISE 93 meeting in Leuven. The 1993 K. U. Leuven International Seminar on Modal Analysis was the eighteenth in a series of annual conferences and courses on Modal Analysis and Structural Dynamics organized by the department of Mechanical Engineering of the K.U. Leuven. This year's edition consisted of a course on Modal Analysis Theory and Practice. The three day course was intended as a general introduction into modal analysis theory and practice with emphasis on data acquisition and recent trends such as operating mode analysis and principal component analysis. The course was conceived as an intensive training course illustrated with various integrated demonstrations. During the course a full-scale multi-channel modal survey of a real life structure was conducted; this gave participants the opportunity to discuss practical problems with experts in the field. The course was attended by 21 participants from 6 countries. A second course on Advanced Techniques in Applied Numerical Acoustics was also held on the same dates. The 1993 K. U. Leuven International Seminar on Advanced Acoustics was the fourth in a series of seminars dedicated to numerical and experimental techniques in applied acoustics. NoiselNews International 1994 March Pan American News Brazil The Sociedade Brasileria de Acustica (SOBRAC) is organizing the I Congress Brazil/Argentina together with the 15th SOBRAC meeting at the Hotel Praiatur in Florianopolis, Brazil from 1994 April 11 to 15. This is expected to be the largest event in noise and vibration ever held in Latin America. The hotel is on Ingleses beach on the north end of the Santa Catarina Island of Florianopolis. Invited speakers from abroad include Professor Frank Fahy of the Institute for Sound and Vibration Research in the United Kingdom and Professor John Caselli of the Virginia Polytechnic Institute in Blacksburg, Virginia, USA. It is expected that over 300 persons will attend-from all Latin American countries including Brazil, Argentina, Chile, Paraguay, Uruguray, and Mexico. More than 100 abstracts have been received by the Congress Secretariat. An equipment exhibition will be held as part of the congress. Further information can be obtained from Professor Samir Gerges, President of SOBRAC. FAX: +55 482 341524 or 341519. The Noise and Vibration Group (GVA) at the Federal University of Santa Catarina has obtained a grant of USD 95 000 for the importation of new noise and vibration equipment into Brazil. The Brazilian National Council for Scientific and Technological Development is supporting Dr. Thais C. Morata for research to be carried out on the "Effect of Occupational Exposure to Organic Solvents and Noise on Hearing." The work will be carried out in cooperation with the U.S. National Institute for Occupational Safety and Health at the University of Cincinnati, Cincinnati, Ohio, USA. SOBRAC organized the II Symposium on Vehicle Noise in Sao Paulo, Brazil on 1993 August 30-31. The main topic of interest was how to comply with new Brazilian legislation for external noise control limits. SOBRAC also held its 14th meeting in Curitiba, Parana, Brazil on 1993 November 16-18. Dr. Hans Finke 1994 March G.C. Maling, Jr., Pon Americon Editor from the PTB Braunschweig in Germany gave the keynote address on traffic noise. -Samir N.Y. Gerges Mexico New Acoustical Society Meets. The Sociedad Mexicana de Acustica, the Mexican Acoustical Society, was established at a meeting of professionals in the field of acoustics which was held in 1990 August at the Grand Hotel in Mexico City, Mexico. The first president was Ing. Ilhuicamina Servin Rivas. In 1992 October, the society organized the First National Congress on Acoustics which was held at the Escuela Superior de Ingenieria in Mexico City. During the two-day congress, papers were presented on a wide range of acoustical topics by Mexican scientists and engineers. In 1993 October, the Second National Congress on Acoustics was held at the same venue as the first congress. At the second congress, the Mexican hosts were joined by a number of well-known North American acousticians, including I. Busch-Vishniac, V. Nedzelnitsky, T. Rossing and G. Wong. Membership in the society has grown to approximately 100 members. The current president is Ing. Juan Antonio Ortiz Garcia. USA ASA President Spearheads Noise Assessment. The ASA's Technical Committee on Noise (TCN) has been working since 1991 on a reformulation of its role, and on the role of the Society in the noise area. At the Ottawa meeting of the Acoustical Society of America last May 19, ASA President Richard H. Lyon presented the keynote opening address at a special noise workshop. The purpose of the workshop was to explore possible future roles of the ASA in noise and its control. Cochairmen of the workshop were Robert M. Hoover and T. James DuBois. In his keynote talk, President Lyon stressed that a quiet and tranquil environNoiselNews International Richard H. Lyon ment may appear to be an unreachable goal, but our profession has an obligation to assist in striving for it. He emphasized the need for a troika program based on public information, education at all levels, and support for industry and commerce. In the support category, he mentioned the development of standards and the involvement of industrial people in the activities of the ASA. Today, there are few product designers who are involved with the ASA. But the Acoustical Society of America is indeed an organization with an exceptionally broad scope. It is not a professional society, but rather a society of many professions. Physicists bemoan the narrow focus ofthe American Physical Society, but the ASA has disciplinary strengths in perceptual science, engineering, standards, environmental control, and physiological and psychological health studies. ASA already has the multi-disciplinary focus that is required for the effort. Where ASA is weak is in the product design area and in influencing the development of regulations. There is need to be even more inter-disciplinary in these areas. As an example, product design involves economics, safety, performance, as well as engineering fundamentals involving product dynamics. An important thing for us to consider is how ASA can become a professional home for the designers of sound quality in products. 47 Lyon pointed out that the world is not the same as it was twenty years ago; 1993 is not 1973! Governments are less trusted than they were, economies world-wide are more fragile, and commerce today is truly multi-national. Quiet products have become items of competitive advantage. We need to assemble and organize our resources to provide assistance to society at large to meet the challenges of a troika program. Following President Lyon's keynote speech, participants joined small subgroups to define key issues and to develop action plans. The subgroups were tasked to address the following areas of interest: environmental noise control, industrial noise control, product noise control, prevention of hearing loss, government and education. The subgroups focused on three issues: 1) what are the noise issues facing ASA, 2) what should be the role of the ASA in addressing these issues, and 3) how should ASA fulfill its role? At the conclusion of the all-day workshop, the moderators of the six subgroups presented their findings. Their recommendations were subsequently presented at the meeting of the TCN on May 20. The workshop organizing committee (R. Hoover, J. DuBois, B. Brooks, K. Eldred, G. Krishnappa and L. Sutherland) was active over the summer and presented a progress report on the ASA's role on noise and its control at the Denver meeting of the Society on October 07. A number of proposed actions developed during the special workshop in May were compiled and refined. There was an extended discussion of these proposals at the TCN meeting of October 08. The TCN agreed to take action this year on a selected number of the proposed steps. These included the general areas of education, public awareness of noise issues, noise induced hearing loss, industrial and product noise control, improved communications with governments at all levels, and the establishment of a clearing house on noise and its control. Some of the specific steps to be acted upon this year include: • Determine the feasibility and scope of the proposed ASA Clearing House on Noise, 48 • develop a seeding program regarding acoustics and noise control in public schools, to be conducted by local chapters of ASA, • sponsor a joint meeting with other professional societies on industrial noise and product quieting, • develop an information package on noise induced hearing loss, and • organize a program to conduct hearing tests at ASA meetings. Subcommittees to carry out specific proposals are being appointed, and they will report on progress at the next ASA meeting in Cambridge, Massachusetts in 1994 June. In addition, the existing steering subcommittee for this overall program will continue to develop some of the other ideas generated at the Ottawa workshop for future action. FAA To release Integrated Noise Model. The ability to accurately assess and predict noise exposure is an increasingly important factor in the design and implementation of airport and airspace improvements. In response to this growing challenge, the U.S. Federal Aviation Administration (FAA) Office ofEnvironment and Energy (AEE) is redesigning the Integrated Noise Model (INM) to increase its performance, capability, and ease of use. Version 5.0. The most striking difference in the new INM design (Version 5.0) will be its modem, fully menu-driven look and feel. Users will be able to choose between operating in Microsoft Windows 3.1 or WindowslNT, both of which enable multi-processing and graphical "point and click" program interaction. Supporting the windows environment will be a new INM database structure using dBase (.dbf) compatible files. This structure will help users to set up their INM input data through presentation of default parameters and automatic error checking. Users will be able to access the INM database through their own DBMS application programs, including FoxPro, Clipper, Paradox, and dBase. Moreover, Version 5.0 will provide input and output functions allowing data to be exchanged with popular spreadsheets and other commercial applications that run in Windows. NoiselNews International Version 5.0 run times will be significantly faster. Performance gains will be achieved by redesigning the model and implementing it with a 32-bit processing capability that will run on both Windows 3.1 and WindowslNT operating systems. INM code will be reprogrammed in CH, an object-oriented language. For those who need the highest level of performance, Version 5.0 will also be available on workstation computers. Using WindowslNT, Version 5.0 immediately supports DEC Alpha and MIPS-based ~orkstations. Also, INM will run on HP workstations (widely used in the FAA) by using NT translation software or, possibly, HP support of the NT operating system. Version 5.0 will be shipped with Microsoft software allowing NT programs to run on Windows 3.1 operating systems, thereby supporting both the currently large DOS/Windows market and the predicted growth in the NT market. In so doing, we will be able to reduce costs and increase reliability by maintaining one stream of code. Other changes will contribute significantly to visual analysis and presentation. In Version 5.0 users will be able to overlay noise contours with airport diagrams (CAD), U.S. Census Bureau population and street map data, aircraft tracks, and other information. INM will provide the necessary software to process census data and to compute population inside of noise contours. In addition, the FAA is investigating fee-for-service schemes to provide users with subsets of the census data for input into the INM. Version 5.0 will also be capable of displaying topography and ARTS data, including the statistical reduction of ARTS data into INM tracks. For applications with extensive street mapping, topography, or radar tracks, as well as possible 3-D graphics, the workstation version of 5.0 will be required. PC Version 5.0 is scheduled for release by September, 1994. The best price estimate at this time for PC Version 5.0 is USD 300 to USD 500 to cover diskettes, user and reference manuals (the reference manual is new), shipping and handling, and potential licenses. Some users will also need hardware upgrades. The recommended PC platform is: a 486DX66MHz processor with 16Mb RAM, a 1994 March 300 Mb hard disk (Approx. 20Mb INM programs, 10Mb/application, Windows OS, other commercial Windows applications), and a CD-ROM drive for processing Census and topographical data. Version 4.11. Prior to completion of Version 5.0, the FAA has released INM Version 4.11. This upgrade concentrates on the following enhancements to the model's core equations: • An internal profile generator to compute aircraft takeoff profiles based on user-supplied airport elevation and temperature data; • Effects on source-to-receiver slant range due to land elevation at and around the airport. (Users must have access to 3 Arc Second Elevation Data on CD-ROM from Rocky Mountain Communications, Golden, CO.); • Analysis of aircraft runup operations given a user-defined location and duration for the runup; • Addition of CNEL, WECPNL, LEQday, LEQ-Night metrics; • Revised directivity algorithm to improve behind start-of-takeoff-roll assessments; • User-defined displaced runway thresholds; • Improved runtimes from streamlined grid computations; • Additions to the aircraft database. Other Noise Models. In March, Version 2.2 of the Heliport Noise Model (HNM) is scheduled for release. The new version will contain several features to make installation and data development easier, including a new user interface and additional error checking. We are adding data for some of the existing helicopters, improving the Taxi Module, and incorporating a new plot routine (the same as the INM). 1994 March A revised version of the Area Equivalent Method (AEM) is planned for release in 1994 August. The name of the AEM will change to the Area Dimensional Model (ADM) to reflect its ability to not only compute the 65 dB DNL contour area in square miles, but to calculate the dimensions of the contour by length and width. The ADM will include all aircraft contained in INM Version 4.11. Noise Model Training. The first "Environmental Tools Workshop" was conducted at the FAA Academy this August. The 3-day workshop provided hands-on instruction in the use and application of the INM and AEM. We plan to offer this workshop again in the near future on a one week basis with the HNM included. If you are interested, please indicate on the attached user survey described below. More Information. If further information is needed, please contact Donna Warren' AEE-l20 U.S. Department of Transportation, Federal Aviation Administration, 800 Independence Ave., S.W., Washington, DC 20591. Telephone: +1 202 267 3571. Wyle Wins Airport Noise Control Contract to Soundproof Homes in Orange County. Wyle Laboratories announced that Wyle Research, a unit ofWyle's Scientific Services & Systems Group, has been awarded a contract from the County of Orange, California, to provide acoustic engineering and architectural services for the sound insulation of existing buildings near John Wayne Airport. The three-year consulting and design services contract is valued at USD 450 000. Wyle performed similar tasks during previous phases of the project since 1987. As part of the new contract Wyle will provide field measurements and analysis of aircraft noise in roughly 150 dwellings, engineering design of sound insulation modifications, architectural plans and specifications, and construction inspection services. Wyle personnel will meet with each affected homeowner as a key element of the company's involvement in this pro- Noise/News International ject. They will explain how sound insulation is done, listen to homeowners' concerns and answer questions. Wyle Research has been involved with airport sound insulation projects since 1968, when Wyle conducted the first project of this kind in the United States. Since then, Wyle Research has conducted 32 similar programs in 24 different airport communities across the nation. Wyle has corporate offices at 128 Maryland Street, El Segundo, California, 90245-4100, USA. Penn State's June 1994 Program in Acoustics and Noise Control. A unique four-week program of graduate-level courses in acoustics and noise control will be offered in 1994 June by Penn State's Graduate Program in Acoustics in cooperation with the University's Applied Research Laboratory (ARL). Courses, many of which are not available at other universities, include: Fundamentals of acoustics, digital signal processing, electroacoustic transducers, acoustical data measurement and analysis, vibration isolation and damping, sound structure interaction, experimental modal analysis, noise control engineering, active control of sound and vibration, and fundamentals of flow-induced noise. The program provides many professional and academic opportunities in a convenient four-week period. For those interested in pursuing an advanced degree, credits earned can be applied toward a Master of Engineering degree in Acoustics from Penn State or transferred to other academic institutions. Those already involved in acoustics or noise control may elect to audit courses to acquire basic knowledge in specialized areas or to enrich and update their technical skills. For those new to these fields, the program provides a comprehensive orientation, while providing the opportunity to interact with faculty and fellow students working in these fields. For further information please contact Dr. Alan D. Stuart, Summer Program Coordinator, the Penn State Graduate Program in Acoustics, P. O. Box 30, State College, PA 16804, phone (814) 8634128, or FAX (814) 865-3119. 49 Asia-Pacific News AUSTRALIA Vibro-Acoustic Sciences Limited Introduces Predictive Engineering Design Software. Vibro-Acoustic Sciences Limited (VSAL), a subsidiary ofVIPAC Engineers and Scientists, Ltd., is coordinating an international consortium (which includes major automotive and aircraft manufacturers, and has received government research grant support) to develop a second generation software product-RESOUND. Targeted at the large installed base of engineering UNIX workstations, the RESOUND project involves not just software development but important new research and development of "modal energy methods" which promise to extend the capabilities of the existing statistical energy analysis (SEA) method to permit detailed engineering design. The project follows the successful launching, in 1992 January, of AutoSEA, its noise and vibration modeling software which uses Apple Computer's graphical user interface to present SEA as an intuitive noise and vibration modeling tool for non-academic design and development engineers. One application was to Incat's design for the 71-m wave-piercing catamaran which recently set the North Atlantic crossing speed record. Readers who want more information on this topic may contact Anne Altamore, Vipac Engineers & Scientists, Ltd., The Victorian Technology Centre, 275-283 Normanby Road, Port Melbourne, Victoria 3207, Australia. Copies of the INTER-NOISE 91 Proceedings are still Available. INTERNOISE 91, the 1991 International Congress on Noise Control Engineering was held in Sydney, Australia on 1991 December 2-4. The theme of the meeting was The Costs ofNoise. Alimited number of the proceedings of the Congress are still available. Three hundred and eleven papers were published in the proceedings; these include two distinguished lectures and special sessions on a number of topics in noise control engineering. The 50 A. Lawrence, Asia-Pacific Editor INTER-NOISE Proceedings are sold only as atwo-volume set. For further information, contact the Australian Acoustical Society at the address given in the NN/ Directory on page 63 of this issue. Alternatively, contact Noise Control Foundation, P.O. Box 2469 Arlington Branch, Poughkeepsie, NY 12603, USA. FAX: +1914473 9325. Erratum. An error was made in the 4th paragraph of the article on the ASHRAE Contract which appeared in the Asia-Pacific News Department in the 1993 September issue (page 161). The first grade of metric is not the A-weighted sound pressure level, but the (Linear - A) sound pressure level difference where energy down to /0 Hz is included.-Ed. ·ti KOREA WESTPRAC V to Immediately Precede INTER-NOISE 94. Complete information on INTER-NOISE 94, the 1994 International Congress on Noise Control Engineering will be found on pages 25-41ofthis issue. Individuals who are interested in branches of acoustics in addition to noise may want to attend WESTPRAC V, the Fifth Western Pacific Regional Acoustics Conference. This conference will be held in Seoul, Korea on 1994 August 23-25. Although there will be some papers on noise presented at the conference, the technical program is expected to emphasize other areas of acoustics such as speech and oral communication, electroacoustics, ultrasonics and underwater acoustics, physical acoustics, and musical acoustics and psychological effects. The General Chairman for the conference will be ll-Whan Cha. WESTPRAC V is being organized by the Acoustical Society of Korea. The official language will be English. There will be no simultaneous translation. For further information on WESTPRAC V, contact the Congress Secretariat, Wann Yu, The Acoustical Society of Korea, Science Building, Suite 302, 6354 Yuksam-Dong, Kangnam-Ku, Seoul 135-703, Korea. Tel: +82 2 556 3513; FAX: +8225699717. Noise/News International 1994 March INCE UPDATE The Boards of Directors of International INCE and INCE/USA welcome the opportunity afforded by this department of NNI to bring readers up to datc on the activities of the two organizations. Published here are reports on actions taken and planned by the two Boards, activities of committees, summaries of discussions and decisions of general interest, etc. Announcements and reports of the major conferences ofI-INCE and INCE/USA will be found in other NNI departments. It is the intent of this department to keep the reader informed of what's going on within the two organizations that jointly share the responsibility for the publication of Noise/News International. International INeE Cops Succeeds Maa on International INCE Board. Following the successful completion of INTER-NOISE 93 in Leuven, Belgium last August, Professor Andre Cops, the general chairman of INTER-NOISE 93, was elected to the Board of Directors of International INCE for a six-year term. Cops succeeds Professor Dah-you Maa who has served on the Board as the representative of INTER-NOISE 87. INTERNOISE 87 was was co-hosted by the Acoustical Society of China and Academia Sinica in Beijing, China. As reported in the last issue of this news magazine, Cops succeeded Professor Henry Myncke as I-INCE Secretary-General, effective 199401-01. In addition to his double duty on the I-INCE Board, Cops is also serving as European Editor of NNJ. Four I-INCE Member Societies to Cooperate in Active Noise Symposium. INCE/USA, INCE/Japan, the Acoustical Society ofAmerica, and the Acoustical Society of Japan will join in the sponsorship of ACTIVE 95, the 1995 International Symposium on Active Control of Sound and Vibration. The conference is a continuation of the biannually-organized meetings on Recent Advances on Active Control of Sound and Vibration which were held at the Virginia Polytechnic Institute in Blacksburg, Virginia, USA in 1991 and 1993, and the International Symposium on Active Control of Sound and Vibration which was held in 1991 in Tokyo Japan. The format of the meeting will follow that of the Blacksburg Conferences with full-length papers in a proceedings volume available to delegates at final registration. The Symposium will be held on 1995 July 6-8 in Newport Beach, California. The organization of the Symposium organization will be coordinated by INCE/USA because it immediately precedes INTER-NOISE 95, the 1995 International Congress on Noise Control Engineering which is also being held in Newport Beach on 1993 July 10-12 (See announcement below.- Ed.) The venue for both meetings will be the Newport 1994 March Beach Marriott hotel, an attractive resort hotel overlooking Newport Beach Harbor and the Pacific Ocean. Professor Jiri Tichy, head of the Graduate Program in Acoustics at the Pennsylvania State University, University Park, Pennsylvania, USA will be the general chairman and Professor Hideki Tachibana of the University of Tokyo will be co-chairman for the Symposium. It is expected that approximately 150 technical papers will be presented covering all aspects of active control of noise, sound fields (including auditoria and other listening spaces), and vibration. It is expected that a combined SymposiUm/Congress registration fee will be available to delegates who want to attend both the Symposium and INTER-NOISE 95. The Announcement and Call for Papers for both meetings will be issued in 1994 June, and abstracts of papers will be due in 1994 December. Individuals interested in presenting a technical paper or organizing a technical session should contact either Professor Tichy or Professor Tachibana: Professor Jiri Tichy Graduate Program in Acoustics Applied Research Laboratory The Pennsylvania State University P.O. Box 30 State College, PA 16804, USA Professor Hideki Tachibana Institute of Industrial Science University of Tokyo Roppongi 7-22-1 Minato-ku TOKYO 106, Japan To be added to the mailing list to receive the Announcement and Call for Papers for ACTIVE 95, contact the Institute of Noise Control Engineering, P.O. Box 3206 Arlington Branch, Poughkeepsie, NY 12603, USA. INCE/USA to Organize INTER·NOISE 95 in Newport Beach, California. INTER-NOISE 95, the 1995 International Congress on Noise Control Engineering, sponsored by the International Institute of Noise Control Engineering, and will be held in Newport Beach, California, USA. Newport Beach is a business center and resort community on the Pacific Coast south of Los Angeles. The congress will be held at the Newport Beach Marriott hotel from 1995 July 10 to 12. INTER-NOISE 95 will be the twenty-fourth in a series of international congresses on noise control engineering that have been held in the United States and in other countries since 1972. The theme of INTER-NOISE 95 is Applications for Noise Noise/News International 51 ~b Los Angeles • . Control Engineering. The congress is sponsored by the International Institute of Noise Control Engineering, and is being organized by the Institute of Noise Control Engineering of the USA. (lNCE/USA). Alan H. Marsh, President of DyTec Engineering and Editorin-Chief of Noise Control Engineering Journal, is the General Chairman. Robert J. Bernhard, Director of the Ray W. Herrick Laboratories at Purdue University, and J. Stuart Bolton, Professor of Mechanical Engineering at Purdue University, are cochairmen of the Technical Program and will edit the congress proceedings. Technical papers in all areas ofnoise control engineering will be considered for presentation at the congress. An Announcement and Call for Papers will be issued in 1994 May, and abstracts will be due in 1994 December. A major acoustical equipment, materials and instrument exhibition will be held in conjunction with INTER-NOISE 95. The Exhibition will include materials and devices for noise control as well as instruments such as sound level meters, noise monitoring equipment, sound intensity measurement systems, acoustical signal processing systems, and equipment for active noise control. A noise control seminar and an international symposium will be held at the Newport Beach Marriott immediately before INTER-NOISE 95. The seminar will be held on 1995 July 7-8. The 1995 International Symposium on Active Control of Sound and Vibration will be held on July 6-8 (See announcement above.-Ed.) The site of the congress, the Newport Beach Marriott Hotel, is approximately 1 km from the Pacific Ocean on a hill with a view to the southwest of Newport Beach Harbor, Balboa Island and, on the horizion, Catalina Island about 40 km offshore. 52 Newport Beach is located in Orange County, California, south of Los Angeles. Orange County Airport (John Wayne Airport [SNA]) is about 15 minutes to the north of the hotel by automobile. The airport was completely rebuilt in 1990-1991, and is now an excellent final destination for delegates to INTERNOISE 95. The Newport Beach Marriott hotel provides complimentary transportation to and from the Orange County Airport. Los Angeles International Airport (LAX) is about 60 km to the northwest. Scheduled air transportation service, scheduled bus service and frequent van service are also available from LAX to Orange County Airport. The location of the hotel is very attractive; opportunities for recreational activities include sightseeing at Disneyland in Anaheim, a boat trip to Catalina Island, and the harbor and beaches in the Newport Beach and Laguna Beach areas which are readily accessible without an automobile. The hotel is adjacent to one of Southern California's major shopping centers, Fashion Island, in the Newport Center, and is about 20 minutes from the well-known South Coast Plaza shopping center and the Orange County Center for the Performing Arts in Costa Mesa. Some of the best restaurants in California are within 30 minutes of the hotel. The hotel has excellent meeting room and exhibition facilities for INTER-NOISE 95. It was the venue for INTER-NOISE 89, and attendees at that congress will recall the excellent meeting, living and dining facilities at the Newport Beach Marriott. Further information on the congress, the seminar and the exhibition may be obtained from the Institute of Noise Control Engineering, P.O. Box 3206 Arlington Branch, Poughkeepsie, NY 12603, USA. INCE/USA INCE/USA Names New NCEJ Editor-in-Chief. At its meeting in Denver Colorado on 1993 October 03, the INCE Board of Directors named Alan H. Marsh as Editor-inChief of Noise Control Engineering Journal. He succeeds Professor Malcolm J. Crocker who submitted his resignation to INCE/USA in 1993 September (See the President's Column in Noise/News International, Vol. I, No.4-Ed.) At the same meeting, the Board approved a new vision for Noise Control Engineering Journal which will begin to be implemented with the 1994 January-February issue. One significant change is that the solicitation of technical papers and handling of peer reviews will be done by a team of Associate Editors under the direction of the new Editor-in-Chief. A second significant change involves composition and layout of NCEJ. INCE/USA has an agreement with the American Institute of Physics (AlP) to perform this function, and the 1994 JanuaryFebruary issue of NCEJ has now been published in the new format. NCEJ will no longer carry advertising; all potential advertisers should consider Noise/News International as their primary advertising medium. The names, addresses and telephone numbers of the new Editor-in-Chief and Associate Editors of NCEJ are given below-together with the subject areas which they will cover. Noise/News International 1994 March Prospective authors are encouraged to submit their manuscripts directly to the Associate Editors. Tel: +1317 494 9614; FAX: +13174940787 Areas covered: Book Reviews KESSLER, FREDERICK M., Associate Editor FMK Technology, Inc. P.O. Box 168, Bound Brook, NJ 08805, USA Tel: +1 908 356 6364; FAX: +1 908 356 0244 Areas covered: Stationary Noise sources; Community Noise Control MARSH, ALAN H., Editor-in-Chief DyTec Engineering, Inc., 5092 Tasman Drive Huntington Beach, CA 92649, USA Tel: +1 714891 1407; FAX: +1 7148971611 Areas covered: All subjects BERNHARD, ROBERT J., Associate Editor 1077 Ray W. Herrick Laboratories Purdue University, West Lafayette, IN 47907-1077, USA Tel: +1317 494 2141; FAX: +13174940787 Areas covered: Signal Processing; Analytical Methods; Modeling, Prediction, and Simulation BOLTON, J. STUART,Associate Editor 1077 Ray W. Herrick Laboratories Purdue University, West Lafayette, IN 47907-1077, USA Tel: +1317 494 2139; FAX: +13174940787 Areas covered: Noise Control Elements (Barriers, Si· lencers, Enclosures, Mufflers, Absorptive Materials) BRUCE, ROBERT D., Associate Editor Collaboration in Science & Technology Inc. 15835 Park Ten Place, Suite 105 Houston, TX 77084-5131, USA Tel: +1 713 492 2784; FAX: +1 7134921434 Areas covered: Industrial Noise Control FULLER, CHRIS R., Associate Editor Vibration and Acoustics Laboratory Mechanical Engineering Department Virginia Polytechnic Institute and State University Blacksburg, VA 24061, USA Tel: +1703231 7273; FAX: +1 703 2319100 Areas covered: Active Noise and Vibration Control HUBBARD, HARVEY H., Associate Editor 23 Elm Avenue, Newport News, VA 23601, USA Tel. +18045960819; FAX: +1 804 8648823 Areas covered: Air Transportation Noise JONES, JAMES D., Associate Editor 1077 Ray W. Herrick Laboratories Purdue University, West Lafayette, IN 47907-1077, USA POWELL, CLEMANS A., Associate Editor NASA Langley Research Center, Mail Stop 462 Hampton, VA 23681-0001, USA Tel: + 1 804 864 3640; FAX: +1 804 864 7687 Areas covered: Psychological Effects of Noise; Effects of Noise on Physical Structures and Animals; Criteria and Rating of Noise RASMUSSEN, GUNNAR, Associate Editor GRA.S. Hoje Skodsborgvej 22, DK 2942 Skodsborg, Denmark Tel/FAX: +45 42 80 60 52 Areas covered: Acoustical Instruments; Measurement Techniques; Test Facilities SOMMERFELDT, SCOTT D., Associate Editor Applied Research Laboratory The Pennsylvania State University P.O. Box 30, State College, PA 16804, USA Tel: +18148631398; FAX: +18148638783 Areas covered: Physical Phenomena; Noise Generation; Sound Propagation TOCCI, GREGORY c., Associate Editor Cavanaugh Tocci Associates, Inc. 327F Boston Post Road, Sudbury, MA 01776, USA Tel: +1 508 443 7871; FAX: +1 508 443 7873 Areas covered: Building Noise Control VON GIERKE, HENNING E., Associate Editor 1325 Meadow Lane, Yellow Springs, OH 45387, USA Tel: +1 513 767 2181 Areas covered: Perception of Sound; Physiological and Sociological Effects of Noise; Environmental Impact Statements Help Quiet the World How? Become a Member or Associate of the Institute of Noise Control Engineering of the USA and receive both Noise/News International and Noise Control Engineering Journal. When? Begin now! Complete the application on page 55, and return it to INCFlUSA. You will become an INCE Associate immediately. Complete the reverse side of the application, if you wish to be considered for INCE Membership. 1994 March Noise/News International 53 Books Noise Control in Buildings Cyril M. Harris, Editor McGraw Hill , Inc., 11 West 19th Street, New York, Ny 10011, USA. Cloth, 1993, USD 45.00 This book is subtitled A Practical Guide for Architects and Engineers. It provides a wealth of infonnation, mainly without the use of mathematics, that can be used to ensure that noise control measures are incorporated into buildings during the design stage. The reader will find introductory material on the general aspects of sound transmission into buildings, properties of sound waves, sound absorption coefficients, and tables of sound absorption coefficients. There are chapters on both airborne and structureborne sound transmission, and several chapters on the control of specific noise sources in buildings. These include heating, ventilating, and airconditioning systems, noise in plumbing systems, noise in electrical and mechanical systems, and the uses of vibration isolators to control noise. It is pointed out in the preface that extensive tables of the sound absorptive properties of materials are not generally available in the literature, and that the characteristics of acoustical materials manufactured in North America, Europe, and Asia have been collected and published as appendices to Chapter 3, Sound Absorptive Materials. Propagation of Sound in Porous Media J.E Allard Elsevier Science Publishers, Ltd., Crown House, Linton Road, Barking, Essex IG 11 8JU, United Kingdom xiii + 284 pp., cloth, USD 89.95 This book is devoted to the physics and mathematics of sound propagation through porous materials. The essentials of acoustic impedance, reflection of sound, and flow resistance of materials is given in the introductory chapters. The text then covers sound propagation in porous materials, including porous materials in general and materials having circular pores. The Biot theory is then 54 applied to the acoustical properties of materials that have an elastic frame, such as acoustical foam materials. Another chapter in the book deals with the modelling of porous layers, and emphasizes the use of transfer matrices in the prediction of the impedance ofsuch structures. Throughout the book, the treatment is generally mathematical, and is in a fonn that lends itself to mathematical modelling of porous materials. Many of the calculated results are given in figures; the author offers to supply copies of the computer programs that have been used to calculate impedance and transmission coefficients. Pump Noise and Vibrations G. Caignaert, Editor Centre Technique des Industries Mechaniques (CETIM), B.P. 67, 60304 Senlis, France xv + 546 pp., paperback, FFR 417.06 without tax, FFR 440 including tax. This volume is the proceedings of the first international symposium on pump noise and vibrations sponsored by the Societe Hydrotechnique de France. The symposium was held at the Centre de Recherche d'Electrict€ de France (EDF) on 1993 July 7-9. The ten major topics covered in the proceedings are: Experimental analysis of unsteady flow in pumps, numerical analysis ofunsteady flow in pumps, Modelling and prediction of fluid-borne noise and similarity laws, measurement of fluid borne noise in pumps, structure-borne and air-borne noise measurement, Dynamic interaction between pump and piping system, Computer codes for noise and vibration analysis, Experimental methods for noise and vibration analysis of pumps and piping systems, Case histories, and Pump noise and vibration control. Of the 58 papers in the proceedings, 15 are in French and 43 are in English. Vibrations and Waves-Part A: Vibrations; Part B: Waves Sylwester Kaliski, Editor Noise/News International Elsevier Science Publishers, B.v., P.O. Box 1991, 1000BZ Amsterdam, The Netherlands Part A: xiii + 488 PP., hardcover, NLG 330.00; Part B: xi + 382 pp., NLG 280.00. Price for both volumes, NLG 550.00 These two companion volumes were edited by Sylwester Kaliski in collaboration with Lech Solarz. The first volume is devoted to vibrations, and covers vibrations in continuous systems such as bars, shafts, strings, beams, membranes, plates, and shells. Both linear and nonlinear vibrations are treated. Approximate methods treated include the Ritz method, the Rayleigh method, and the BubnovGalerkin method. The final chapters of the book are devoted to the physical foundations of the vibration theory ofsolids. Crystal structures and the stochastic dynamics of vibratory systems are among the topics covered. Part B is devoted to a study of a variety oftopics in wave propagation, including the basic equations of motion, propagation in non-linear elastic media, boundary value problems, plane, cylindrical, and spherical waves, shock waves, surface waves, and stochastic analysis of wave processes. Field Representations and Introduction to Scattering; Vol. 1, Acoustic, Electromagnetic, and Elastic Wave Scattering V. V. Varadan, A. Lakhtakia and v.K. Varadan, Editors Borth Holland, P.O. Box 1991, 1000BZ Amsterdam, The Netherlands xv + 355 pp., hardcover, USD 134.50 This book is a treatment of the general theory of scattering for both scalar and vector fields. A general introduction to the properties of acoustic fields is given, and boundary conditions are discussed. Integral representations and integral equations for harmonic fields are discussed and the properties of scattered fields are discussed; in general and by spheres and cylinders. The book is mathematical with a good deal of fonnalism related to the general theory of scattering. 1994 March INSTITUTE OF NOISE CONTROL ENGINEERING of the United States of America, Inc. APPLICATION FOR: DINCE ASSOCIATE 0 INCE MEMBER Applicants for INCE Associate Status should complete this side of the Application Form only. Applicants for INCE Membership must complete both sides of the form. Date _ Please type or print clearly. Name Mr._ Ms._ Dr._ Prof._ (last, first, middle) _ Home address _ include zip code Home Telephone 0 check if preferred for mailing Date of birth _ Business/organization name & address _ include zip code Business telephone Position title 0 check if preferred for mailing _ EXPERIENCE Describe briefly your interests and/or professional experience in the field of noise and its control. Include any special interests, number of publications, patents, etc. signature • • • • • • •• •• • ••••• • •••••• • • • •• ••••• • • • •• • • • • • • • • •••••• • • General Information Annual fee for INCE Associates and Members Domestic USA Canada/Mexico Overseas (international airlift mailings) USD 60.00 USD 84.00 USD 87.00 Payment must be in U.S. Dollars by check drawn on a U.S. bank or on a bank with a correspondent relationship in the United States. Checks requiring a collection fee charged to INCE will be returned. INCE Associates and INCE Members receive both Noise/News International and Noise Control Engineering Journal, and will receive reduced registration fees at INCE/USA conferences. Please mail this Application Form and check for the annual fee to: Institute of Noise Control Engineering, P.O. Box 3206 Arlington Branch, Poughkeepsie, NY 12603, USA. THIS PAGE TO BE COMPLETED ONLY BY APPLICANTS FOR INCE MEMBERSHIP PRINCIPAL REQUIREMENTS FOR BECOMING A FULL INCE MEMBER • be enrolled as an INCE Associate; • have earned a baccalaureate (or equivalent four-year academic degree) or higher degree from a qualified program in engineering, physics, or architecture offered by an accredited university or college; • have instructed, or have enrolled in and successfully passed as part of a degree program, at least one fullsemester course of instruction devoted to the physical principles of acoustics; • have demonstrated academic or professional experience in acoustics and noise control; • have the application form endorsed by an INCE Member. EDUCATION BEYOND PREPARATORY SCHOOL College/university Location Major Degree Year received ACOUSTICS COURSE(S) List at least one, but not more than two, courses in the fundamentals of acoustics taught or taken for credit [identify college/university, department, course title and number, year, credits; include grade received and name of instructor (if not taught)]. EXPERIENCE (continued from reverse side) Use this space to describe any additional professional experience in noise control engineering that is not listed on the reverse side of this form. ENDORSEMENT The endorser, an INCE Member whose signature appears below, verifies that the information supplied by the applicant is accurate to the best of the endorser's knowledge. Endorser's name (please print) Endorser's signature _ Date _ APPLICANT'S STATEMENT I hereby make application for INCE membership. I certify that the statements made in this application are true, complete, and correct. If elected to membership. I will be governed by the articles of incorporation, bylaws, and policies of INCElUSA. Full signature of applicant Date _ Specialized Meetings This calendar includes specialized meeting (seminars, short courses, workshop, etc.) with limited attendance which feature programs on noi e and its control. Entries for this calendar are solicited from the I-INCE Member Societies and other organization . In order for a listing to appear in this calendar, information must be provided by the organizers of a pecialized meeting on the sessions planned for the technical program that will be devoted to noi e and its control. This is particularly important if the word noise does not appear in the name or theme of the meeting. The registration fee for the event is al 0 to be included for each listing. Send requests for listings of future events with required details to: Specialized Meetings Calendar, INCE/USA, P.O. Box 3206 Arlington Branch, Poughkeepsie, NY 12603, USA. FAX: +1 (914) 4739325. "Sessions on noise are planned 1994 April 25-29 Rotor Dynamics and Balancing Course, Syria, Virginia, USA. Instructors: R.L. Eshleman and C. Jackson. Fee: USD 1 500. Contact: The Vibration Institute, 6262 S. Kingery Highway - Suite 212, Willowbrook, IL60514, USA. Tele- phone: +1 708 654 2254; FAX: +1 708 6542271. 1994 April 26-27 Architectural Acoustics and Noise Control Standards, Austin, Texas, USA. Fee: USD 645. Contact: T. Falkenstein, Why pay an outside laboratory a hefty fee to evaluate acoustic materials? With the ACUPRO Measurement System, all you need to conduct your own absorption and impedance measurements is a two-channel FFT analyzer and a PC. + Measures acoustical impedance and absorption coefficient using the twomicrophone test method from 50 to 5000 Hz. + Menu-driven PC software simplifies data acquisition and microphone calibration. + May also be used for microphone phase calibration for sound intensity measurements. SPECTRONICS, INC. 1994 May 12-15 Effects of Noise on Hearing, Gothenburg, Sweden. Contact: A. Axelsson, Department of Audiology, Sahlgren's Hospital, 413 45 Gothenburg, Sweden. Telephone: +4631601605; FAX: +46 31 829811. 1994 May 24-26 Sound Power Determination Using Sound Intensity, Fullerton, California, USA. Instructors: J. Pope and P. MacDonald. Fee: USD 1 195. Contact: C. Hamilton, Hewlett Packard, 39550 Orchard Hill Place Drive, P.O. Box 8024, Novi, MI 48376-8024, USA. Telephone: +18103802100; FAX: +18103802450. 1994 June 13-16 Mechanics of Underwater Noise, Fundamentals of Acoustic Quieting, Washington, DC, USA. Instructors: D. Ross and R. Collier. Fee: USD 1 300. Contact: Applied Technology Institute, 12960 Linden Church Road, P.O. Box 1172, Clarksville, MD 21029, USA. Telephone: +14105316034;FAX:+14105311013. 1994 June 02-28 Penn State Program in Acoustics and Noise Control, State College, Pennsylvania, USA. Instructors from the Graduate Program in Acoustics at the Pennsylvania State University. Fee: USD 3800 (up to 3 courses). Contact: Dr. Alan D. Stuart, Summer Program Coordinator, the Penn State Graduate Program in Acoustics, P. O. Box 30, State College, PA 16804, Telephone: +1 8148634128; FAX: +1 814 8653119. ACUPRO Measurement System: ACUPRO Measurement System - $6,500 ASTM, 1916 Race Street, Philadelphia, PA 19103, USA. Telephone: +1 215299 5480; FAX: +1 2152992610. ACUPRO Software only - $3,500 I Tel: 2100 Elgin Place, Lexington, KY 40515 606-271-0944 FAX: 606-273-9793 1994 July 11-14 Flow Acoustics, A Technology Audit, Lyon, France. * Contact: J. E. Fowcs-WilIiams, Cambridge University, Engineering Department, Trumpington Street, Cambridge CB2 IPZ, England. FAX: +44 223 464 815. Reader Service Number 3 58 Noise/News International 1994 March • Product News New literature on Digital Multi-Function level Recorder Scantek, Inc., has announced a four-page data sheet describing the LR-06 Level Recorder from RION Co. with capabilities as a level recorder, data-logger, and interface. The small and rugged unit is powered by AC, or rechargeable or automobile batteries. The data stored on the PCMCIA 1MB memory card are instantaneous level data. The sampling rate for digital conversion depends on the paper speed. The unique recorder has a sample rate/recording time fixed at one roll of paper so that one roll of paper is equivalent to the memory in one card. The slowest is 1O.0s; the fastest is .003s. Data can be compressed or expanded to allow replay of long-term data in a short time. For further information contact Richard J. Peppin, PE., President, Scantek, Inc., 916 Gist Ave., Silver Spring, MD 20910, USA. Telephone: +1 301 495 7738; FAX: +1 301 495 7739. Circle Reader Service Number 51. CEl Instruments Accounces New Digital Sound level Meters CEL Instruments have recently announced a completely new range of digital sound level meters featuring the many benefits of Digital Signal Processing (DSP) Technology. The CEL-593 and CEL-573 ranges feature real time octave band and one third octave band analysis in the frequency domain covering the audio bandwidth 10Hz to 25 KHz. This allows the operator to instantly identify problem frequency bands when tonal components are present. The CEL-573 can be controlled manually to store results entirely under the choice of the user for attended measurements on fans, pumps, compressors, office equipment, etc., whilst the CEL-593 has additional facilities to collect data in either a regular periodic manner or when sound levels exceed a set threshold value. 1994 March 1M PROVE Ylb ~R NOISE The use of DSP technology in the CEL-573 and CEL-593 family is said to assure the user of the utmost accuracy and reliability. For further information, contact Robert Selwyn, CEL Instruments, 1 Westchester Drive, Milford, NH 030553056, USA. Telephone: +1 603 6720470; FAX: +1 603 672 0487. Circle Reader Service Number 52. PCB Forms New Division: AVC Instrumentation AVC Instrumentation (Active Vibration Control Instrumentation) has been established as a new division of PCB Piezotronics, Inc., developing and marketing piezoelectric actuators, sensors, and associated electronics for active control of noise and vibration. These devices are suitable for reduction of noise and vibration in helicopters, aircraft, automobiles, marine hulls, and vibrating machinery. AVC Instrumentation offers compact, high-powered piezoelectric actuators for applying controlling forces. These rugged piezoelectric actuators are hermetically sealed and electrically shielded, making them ideal for applications requiring continuous use in harsh environments. Power amplifiers for driving our actuators and other piezoelectric devices are also available. In addition, AVC offers quality ICP® piezoelectric accelerometers, force transducers, and microphones for sensing in active control systems. Located at PCB's modem facility in Depew, NY, AVC Instrumentation utilizes PCB's extensive in-house capabilities for research, design, and manufacturing developed by manufacturing piezoelectric sensors for over 25 years. For additional information contact AVC Instrumentation's applications engineering group at AVC Instrumentation, div. of PCB Piezotronics Inc., Attn: Andrea Mohn, 3425 Walden Avenue, Depew, NY 14043, USA. Telephone: +1 716 684 0006; FAX: +1 716 684 0987. Circle Reader Service Number 53. NoiselNews International Do your work faster and more accurately with RTA's proven acoustical software. Environmental Noise Model (ENM) is world-class. Now, the new WINDOWS version is even more so. Individually defined noise sources, ground effects, topography, wind and temperature gradients, and barriers are all input on spreadsheets. Predictions include contour maps and rank ordering of noise sources. Also available are dB box for fast computing in acoustics, including STC, TL and IIC. And dB ray for modeling acoustical paths in rooms. All operate on IBM compatibles. Be time- and value-conscious. Call today. SCANTEK INC. 916 Gist Avenue Silver Spring, MD 20910 Tel: (301) 495·n38 • FAX -n39 Reader ServIce Number 7 ~ I .. / Sound and Vibration FOR RENT OR LEASE Instrumentation To help you meet today's capitalspending constraints, we will work with you on whatever it takes - Rental, Lease or Lease Purchase - to get you the equipment you need. From single instruments to complete systems, we offer Outdoor Noise Monitors, SLMs, FFTs, Dosimeters, RTAs, Tapping Machines, Reference Sound Sources, DAT Recorders, Multiplexers, Human-Body Vibration Analyzers, Level Recorders, Microphones, Calibrators, and more. Our rental and lease plans are flexible enough to meet your needs. Our rates are reasonable. And you still get our expert engineering assistance-even paid on-site personnel are available. Strike a deal with us. And get on with your job. Call today. SCANTEK INC. 916 Gist Avenue Silver Spring, MD 20910 Tel: (301) 495-n38 • FAX n39 Reader Service Number 10 World Conference Calendar Thi calendar includes major conference which feature programs on noise and its con1T01. The working language of each conference will be English, unle otherwise noted. This calendar does //ot include eminars, short courses, workshop and other small, specialized meeting which are Ii ted elsewhere in thi i ue of NNI. The shaded entries in the calendar are conference which are organized by I-I CE and I CE/USA. Entrie for thi calendar are 'olicited from the I-I CE Member Societies and from other organizations. In order for a listing to appear in this calendar, infonnation mllst be provided by the conference organizers concerning the sessions planned for the technical program that will be devoted to noise and its control. This is particularly important if the word lIoise does not appear in the name or theme of the conference. Send reque ts for Ii ting of future meetings with required details to: World Conference Calendar, I CE/USA, P.O. Box 3206 Arlington Branch, Poughkeep ie. Y 12603, USA. FAX: +19144739325. 1994 April 11-13 Brasil/Argentina Conference on Acoustics and Vibration, Florianopolis, 5C, Brasil. Contact: Samir N. Y. Gerges, SOBRAC, UFSC/EMC/CTC - Lab. Acustica e Vibracoes, Cx. Postal 476 Trindade Cid. Universitaria 88040-900, Florianopolis, SC, Brasil. Telephone: +55 482344074; FAX: +55482341524. 1994 April 18-21 Acoustics '94, Salford, England; sessions on noise are planned. Contact: eM. Mackenzie, Institute of Acoustics, P.O. Box 320, 51. Albans, Herts ALIIPZ, UK. Telephone: +44 727 848195; FAX: +44 727850553. 1994 May 1-4 OISE-CO 94, The 1994 ational Conference on oise Control Engineering, Fort Lauderdale, Florida, USA. Abstract deadline: 1993 November22. Contact: InstituteofNoi e Control Engineering, P.O. Box 3206 Arlington Branch, Poughkeepsie, Y 12603, USA. Telephone: +1 (914) 4624006, FAX: +1 (914) 473- 9325 1994 March 1994 May 2-6 3rd French Conference on Acoustics, Toulouse, France; sessions on noise are planned in English and French. Contact: 3eme CFA, Universite Toulouse-Ie-Mirail, Centre de Promotion de la Recherche Scientifique, 5 Allees Antonio Machado, 31058 Toulouse Cedex, France. Telephone: +33 61 5044 68, FAX: +33 61 50 4209. 1994 May 15-19 Triennial International Mechanical Engineering Congress, Perth, Australia; sessions on noise are planned. Contact: Convention Manager, AE Conventions Pty.Ltd., Engineering House, 11 National Circuit, Barton, ACT 2600, Australia. Telephone: +61 62706530, FAX: +61 6 2732918. 1994 May 16-20 NATO Symposium on Aircraft Noise Receiver Technology, Baltimore, Maryland, USA. Contact: Judi Abraham, Conference Management Associates, 1401 Spring Lake Drive, Haymarket, VA 22069-1008, USA. Telephone: +1 703 7540066; FAX: +1 7037544261. 1994 May 25-26 Schallschutzprodukte '94, BadenBaden, Germany; an exhibition andtechnica1 program are planned in the German language. Contact: Normenausschuss Akustik, Larmrninderung und Schwingungstechnik (NALS) im DIN und VDI, Postfach 10 11 39, 40002 Dusseldorf, Germany. Telephone: +49 211 621 4261; FAX: +49211 6214575. 1994 June 5-9 127th Meeting of the Acoustical Society of America, Cambridge, Massachusetts, USA. * Contact: Elaine Moran, Acoustical Society of America, 500 Sunnyside Blvd., Woodbury, NY 11797, USA. Telephone: + 1 (516) 576-2360, FAX: + 1 (516) 349-7669. Noise/News International 1994 June 6-8 Scandinavian Acoustical Meeting '94, Aarhus, Denmark; sessions on noise are planned, principally in the Scandinavian languages. Contact: Danish Technological Institute, Acoustics, Teknologiparken, DK-8000 Aarhus C., Denmark. Telephone: +45 86142400; FAX: +45 8614 7722 1994 June 13-15 Third International Congress on Airand Structure-Borne Sound and Vi· bration, Montreal, Canada; sessions on noise are planned. Contact: Malcolm 1. Crocker, 201 Ross Hall, Auburn University, AL 36849-3501, USA. Telephone: +12058443310; FAX: +1205 8443307. 1994 July 18-21 Fifth International Conference on Recent Advances in Structural Dynamics, Southampton, England; sessions on active and passive vibration control are planned. Contact: N.S. Ferguson, ISVR, University of Southampton, Southampton S09 5NH, UK. Telephone: +44 703 592274; FAX: +44703593939. 1994 August 23-25 5th Western Pacific Regional Acoustics Conference, Seoul, Korea. * Contact: Conference Secretariat. Telephone: +822 361-2783, FAX: +82 2 365-4668. 1994 August 29-31 I TER- OISE 94, the 1994 International Congress on oi e Control Engineering, Yokohama, Japan. Contact: INTER- OISE 94 Congre Secretariat,REIC, Tohoku University, 2-1-1 Katahira, Aoba-Ku, Sendai 980, Japan. Telephone: +81 22 224 7889, FAX: +81 22 263 9848. 1994 August 31-September 3 International Conference on Motion 59 and Vibration Control, Yokohama, Japan. Contact: K. Yoshida, Science & Technology Faculty, Keio University, 314-1 Hiyoshi, Kohoku-ku, Yokohama, 223 Japan. Telephone: +81 45 563 1141; FAX: +81 45 563 5943. 1994 October 4-6 Transport Noise and Vibration Symposium, St. Petersburg, Russia. Contact: A. lonov, East-European Acoustical Association, Moskov koe Shosse 44, 196158 St. Petersburg, Russia. Telephone: +7812 1279348, FAX: +7812 1279349. 1994 November 9-11 "Noise and sound, nuisance and amenity," Australian Acoustical Society annual conference, Canberra, Australia. Contact: Marion Burgess. Telephone: +61 62688241; FAX: +61 62588276. 1994 November 28-December 2 128th Meeting of the Acoustical Society of America, Austin, Texas, USA.* Contact: Elaine Moran, Acoustical Society of America, 500 Sunnyside Blvd., Woodbury, NY 11797, USA. Telephone: +1 (516) 576-2360, FAX: +1 (516) 3497669. 1995 March 21-23 Euronoise '95: Software for Noise Control, Lyon, France. Contact: CETIM Acoustical Department, B.P. 67, 60304 Senlis, France. Telephone: +3344583217; FAX: +3344583400. 1995 March 22-25 Hearing Conservation Conference IWXX, Cincinnati, Ohio, USA; sessions on noise cancellation and control techniques are planned. Contact: Michele Johnson, National Hearing Conservation Association, 431 East Locust Street, Suite 202, Des Moines, IA 50309, USA. Telephone: +1 515 243 1558; FAX: +1 515 243 2049. 60 1995 April 25-27 Vibration and Noise '95, Venice, Italy. Contact: MJ. Goodwin, School of Engineering, Staffordshire University, P.O. Box 333, Beaconside, Stafford STl8 ODF, England. Telephone: +44 785 275242; FAX: +44 785227741. 1995 May 15-18 SAE Noise and Vibration Conference, Traverse City, Michigan, USA. Contact: Mone Asensio, SAE International, 3001 West Big Beaver Road, Troy, Michigan, USA. Telephone: +13136490420 Control Engineering, P.O. Box 3206 ArlingtonBranch, Poughkeepsie, Y 12603, USA. Telephone: +1 (914)4624006, FAX: +1 (914) 473-9325. 1995 November 27-December 1 130th Meeting of the Acoustical Society of America, St. Louis, Missouri, USA. * Contact: Elaine Moran, Acoustical Society of America, 500 Sunnyside Blvd., Woodbury, NY 11797, USA. Telephone: +1 (516) 576-2360, FAX: +1 (516) 3497669. 1995 May 31-June 4 129th Meeting of the Acoustical Society of America, Washington, DC, USA. * Contact: Elaine Moran, Acoustical Society of America, 500 Sunnyside Blvd., Woodbury, NY 11797, USA. Telephone: +1 (516) 576-2360, FAX: +1 (516) 3497669. 1996 April 1-4 Forum Acusticum, European Acoustics Association, Antwerp, Belgium. Contact: A. Cops, Catholic University Leuven, Celestijnenlaan 200D, B-3001 LeuvenHeverlee, Belgium. Telephone: +32 16 201015; FAX: +32 16201368. 1995 June 26-30 Fifteenth International Congress on Acoustics, Trondheim, Norway; sessions on noise are planned. Contact: ICA 95, N-7034 Trondheim, Norway. Telephone: +477592645; FAX: +477594302. 1996 May 13-17 131 st Meeting of the Acoustical Society ofAmerica, Indianapolis, Indiana, USA. * Contact: Elaine Moran, Acoustical Society of America, 500 Sunnyside Blvd., Woodbury, NY 11797, USA. Telephone: +15165762360, FAX: +1516 349 7669. 1995 July 06-08 International Symposium on Active Control of Sound and Vibration, continuation of two conferences, one organized by Virginia Polytechnic Institute and another by Acoustical Society of Japan. 1995 Symposium sponsored by ASA, ASJ, I CE/USA and I CE/Japan. Contact: J. Tichy, Applied Research Laboratory, Penn. State University, Univer ity Park, PA 16802, USA. Telephone: +1 814865 6364; FAX: +18148653119. 95 July 10-12 ITER-NOISE 95, The 1995 International Congress on Noise Control Engineering, Newport Beach, California, USA. Contact: Institute of oise NoiselNews International 1996 July 31-August 2 INTER-NOISE 96, The 1996 International Congress on Noise Control Engineering, Liverpool, England. Contact: C.M. Mackenzie, Institute of Acoustics, P.O. Box 320, St. Albans, Herts, AL I I PZ, UK. Telephone: + I 44 727848195; FAX: +144 727850553. 1996 December 2-6 132nd Meeting of the Acoustical Society of America, Honolulu, Hawaii, USA. * Contact: Elain Moran, Acoustical Society of America, 500 Sunnyside Blvd., Woodbury, NY 11797, USA. Telephone: +1 (516) 576-2360, FAX: +1 (516) 3497669. * Sessions on noise are planned. 1994 March Acknowledgements The Board of Directo~ of I F../U expresses its. in 'ere appreclatton to the cou tical ocietyof merica for its support and ws ( 1972-92). and oi e ew Intemattonal since it. in eplion in 1993. The Board al. 0 c pcmtion in the publicali n of oi grJlefull} acknowledge. the financial a.ssistance given by th • members of the I CE/US Liaion Program: T&T Bell Laboratori , Murray lIi//, ell Jeney Auburn lJniverity, Auhum Vllh'cr ·iry. lahama Bolt Beranek and ewman, Inc., Camhrid~c. Ma sacJlIISC/ls Brllel and Kjaer Instrument., MarlhoroLl'lh. Mauael/llsi'm Digital Equipment orporation, MaYllard. Ma sachLlSC/ls Indu trial coustic Company, Bront. CII York IBVl orporation, Armollk , CII York Chevron Corporation, San Francisco. California The Pennsylvania tate niver ity, SWtC' Co//ege, Penllsyll'Ullia Tracor, Inc., AII.I/ill. Texa.1 The Board of Directors of International I CE gratefully acknowledges the financial assistan e being given by the following Sustaining Mernbc~ of International I . E: Bond oor Materialenkennis, l!I'ijlldreeh/. Thc e/herlallds Bruel and Kjaer, aerllm, DCllmark Lucas EL In truments, Ltd. lIi/chin.ller/s. VIIi/cd Kingdom orsonic S, Trallhy. onmv Rion ompany., Ltd., Tokyo. Japall Active control can be a viable solution for your needs in reduction of vibration and structureborne noise. Reduce Vibration and Structure-borne Noise, ACTIVELY Piezoel~ctri~C:~~~~;~~rs. Now is the time to consider PIEZOELECTRIC SENSORS and ACTUATORS for active solutions to today's noise and vibration problems: Piezoelectn~ ~ d Signal Amph11ers an I power 1 r active contro conditio~ers ~ tructure01 vibration an s borne noise. Call AVC 10r a 1ree Catalog today. 1-716-684-0001 • Structure-borne noise reduction • Vibration reduction • Active structural control • Active isolation mounts • Active damping 8Y{;N A division of Stop and see us at NOISE-CON 194 PCB PIEZOTRONICS, INC. , strumentation . Vibration contro' n w NY 14043 Actwe 3425 Walden Av~:;f:.684-0987 Reader Service Number 5 1994 March Noise/News International 61 NNI Directory Organizational and Editorial Addresses President, International INCE: W. W. Lang. P.O. Box 3067 Arlington Branch, Poughkeepsie, NY 12603, USA. FAX: +1914 4739325 President, INCEIUSA: Robert 1. Bernhard, 1077 Ray W. Herrick Laboratories, Purdue University, West Lafayette, IN 47907-1077, USA. Fax: + 1 317 494 0787 Secretary-General, International INCE: H. Myncke, Catholic University of Leuven, Celestijnenlaan 200D, B-3001 Heverlee-Leuven, Belgium. FAX: +32 16201368 Managing Editor and Pan-American Editor: G. Maling, Jr., INCE/USA, P.O. Box 3206 Arlington Branch, Poughkeepsie, NY 12603, USA. FAX: +19144739325 European Editor: A. Cops, International INCE, Catholic University of Leuven, Celestijnenlaan 2ooD, B-3001 Heverlee-Leuven, Belgium. FAX: +3216201368 Asia-Pacific Editor: A. Lawrence, P.O. Box 78, Wahroonga, NSW 2076, Australia. FAX: +61 24498694 Member Societies of International INCE Australia: Australian Acoustical Society, Science Centre Foundation, Private Bag 1, Darlinghurst NSW 2010. FAX: +61 7 3454892 Austria: Osterreichischer Arbeitsring ftir Larrnbekampfung, Wexstrasse 19-23, A-12oo Wien. FAX: +43 13305925. Belgium: Association Beige des Acousticiens, Belgische Akoestische Vereniging (ABAV), c/o D. Soubrier, WTCB/CSTC, Mile A-F. Stalport, avo P. Holoffe 21, B-1342 Limelette. FAX: +32 2 653 0729 Brazil: Sociedade Brasileira de Acustica, SOBRAC, c/o Prof. R.A Tenenbaum, Acoustics and Vibration Laboratory, COPPE/UFRJ, c.P. 68503,21945 Rio de Janeiro. FAX: +55 21 2906626 Canada: Canadian Acoustical Association, P.O. Box 1351, Toronto, Ontario M4Y 2V9 China: Acoustical Society of China, 17 Zhongguancun Street, Beijing Czech Republic: Czech Acoustical Society, Technicka 2, 116 27, Praha 6. FAX: +42 2 243 10784 Denmark: Acoustical Society of Denmark, Lundtoftevej 100, Bldg. 352, DK-28oo Lyngby. FAX: +45 42 88 05 77 Finland: Acoustical Society of Finland, Acoustics Laboratory, Helsinki University of Technology, Otakaari 5A, SF-02150 Espoo France: Groupe Acoustique Industrielle et Environnement, GAI.E., CETIM, BP 67, 60304 Senlis. FAX: +33 44 58 34 00 Germany: Norrnenausschuss Akustik, Larmminderung und Schwingungstechnik (NALS) im DIN und VD!, Postfach 1139, D-40oo DUsseldorf 1. FAX: +49 211 6214575. Germany: Deutsche Gesellschaft fur Akustik, Carl von Ossietzky Universitat, D-26111 Oldenburg. FAX: +494417983698 Hungary: Acoustical Commission of the Hungarian Academy of Sciences, Technical University, Chair of Electric Machines, Egry Jozsefu. 18, 1111 Budapest XI. FAX: +361 1666808 62 Hungary: OPAKFI, Laszlo Fuszfas, General Secretary, Fa U. 68, 1027 Budapest. FAX: +36 1 156 1215 India: Acoustical Society of India, c/o Dr. M. L. Munjal, Indian Institute of Science, Department of Mechanical Engineering, Bangalore, Karnataka 560 012. FAX: +91 80341683 Italy: Associazione Italiana di Acoustica, Instituto di Acoustica O.M.Corbino, Via Cassia 1216,1-00189 Roma. FAX: +3963765341 Japan: Acoustical Society of Japan, Ikeda Building, 2-7-7 Yoyogi, Shibuya-ku, Tokyo 151. FAX: +81 3 33791456 Japan: Institute of Noise Control Engineering of Japan, INCE/Japan, c/o Kobayasi Institute of Physical Research, Higashimotomachi 3-20-41, Kokubunji, Tokyo 185. FAX: +81 423273847 Korea: Acoustical Society of Korea, 635-4 Yucksam-Dong, Kangnam-Ku, Seoul 135-703. FAX: +8225699717 Lithuania: Lithuanian Acoustical Society, Krivizl 15-2, Vtlnius 2007 Netherlands: Nederlands Akoestisch Genootschap, Stieltjesweg I, Postbus 162, Delft. FAX: +31 15692410 New Zealand: New Zealand Acoustical Society, P.O. Box 1181, Auckland. FAX: +64 9 309 3540 Norway: Acoustical Society of Norway, Acoustics Laboratory ELAB, N-7034 Trondheim-NTH. FAX: +477591412 Poland: Committee on Acoustics of the Polish Academy of Sciences, Polska Akademia Nauk, Palac Kultury i Nauki, Skrytka pocztowa 24, 00-901 Warszawa Romania: Academia Romana, Comisia de Acustica, Calea Victoriei 125,71102 Bucuaresti. FAX: +40 13120209 Russia: East-European Acoustical Association, Moskovskoe Shosse 44,196158 St. Petersburg. FAX: +7 8121279349 Russia: Noise Control Association of the Baltic State Technical University, c/o Professor N.I. Ivanov, I-st.Krasnoarmejskaja 1, 198005 St. Petersburg. FAX: +7 812 2921559 Russia: Russian Acoustical Society, Andreev Acoustical Institute, ul. Shvemika dA, 117036, Moscow. FAX: +7 095 126 8411 Singapore: Noise Section, The Environmental Engineering Society of Singapore, Kent Ridge, P.O. Box 1007, Singapore 9111 South Africa: South African Acoustics Institute, P.O. Box 912-169, Silverton 0129. FAX: +27 12862856 Sweden: Swedish Acoustical Society, c/o Tor Kihlman, Dept. of Building Acoustics, Chalmers University of Technology, S-412 96 Gothenburg. FAX: +46 31 772 2212 Switzerland: Schweizerische Gesellschaft fur Akustik, Postfach 251,8600 Dtibendorf. FAX: +41 19543348 United Kingdom: Institute of Acoustics, Agriculture House, 5 Holywell Hill, S1. Albans, Herts, ALl lEU. FAX: +44 727 85 05 53 U.S.A: Acoustical Society of America, 500 Sunnyside Blvd, Woodbury, NY 11797. FAX: +1 5163497669 U.S.A: Institute of Noise Control Engineering of the U.S.A, P.O. Box 3206 Arlington Branch, Poughkeepsie, NY 12603. FAX: +1 9144739325 Yugoslavia: Acoustical Society of Yugoslavia, c/o Prof. P. Pravica, Elektrotehniki Fakultet, Bu1evar Revo1ucije 73, 11000 Beograd Noise/News International 1994 March International Advertising (ontacts Below is a list of i~temational contacts for the advertisers in this issue. The telephone number is given first, and is followed by the FAX number where available. In cases where there are several telephone numbers per location. or several locations within a country, a colon (:) separates the telephone number(s) from its respective FAX number. Larson-Davis Laboratories Australia, Indonesia, Thailand, New Zealand, Malaysia: +61 3 6479700; +61 36464370 Austria: +43 222 36 7660; +43 222 369 8443 Belgium, Luxemburg: +3227570351; +3227570607 Brazil: +5531 221 6001:+5531 2219184 Canada: Que (514) 453 0033: (514) 453 0554 Ont (416) 508 8345; (416) 508 8344 France: +33 1 69302880; +33 1 69306851 Germany: +496172 72172; +496172 74618 India: +91 80566813: +91 80582627 Anen; FAX Box #49 Ireland: +353 4125647; +35341 25743 Italy: +39 39 287 24 88; +39392872430 Japan: +81 3 5688 6800: +81 356886900 Netherlands:+31 162024421: +31 162025652 Portugal: +351 1410 3420; +351 14101844 Russia and former Soviet Union Countries: +70954036119: +7 095 482 4374 South Korea: +822 576 3161: +822 576 3163 Spain: +3416750429 Sweden, Denmark, Finland, Norway: +468 765 0280: +468 767 4221 Switzerland, Hungary, Yugoslavia: +41 1 810 3022; +41 1 81043 45 Taiwan, Peoples Republic of China: +886 2 760 2396: +886 2 760 2097 United Kingdom: +44 723 3644 95; +44 1 7235000 94 Venezuela: +58 2 322025: +582321977 lAC Australia: +6123374143 Canada: +1 (416) 845 8900: +1 (416) 845 7380: +1 (604) 929-7357: +1 (604) 929-4337; +1 (416) 847-7833: +1 (416) 847-7763; +1 (514) 663-1440: +1 (514) 389-8450 England: +44 784 456 251; +44 7784 463303 Germany: +49 216 3843133: +49216 380618; +497116805485: +49 6 226 2201 Greece: +77 92 193; +77 53 627 Hong Kong: +82557 8633; +82 897 0423 Indonesia: +62 21 570 5170; +62 21 570 6309 Israel: +972 3 456 433: +972 3 5463290; +972 52 586211: +972 52 547 244: +972 3 339224: +972 3 333 980 Japan: +81 3 831 9595, +81 3 835 9658: (no FAX); +81 45 391 1906: (no FAX); +81 64734531: +81 64734558; +81 33271 7771: +81633281 1928 Korea: +82 2 846 2708: +82841 6634: +82 2 577 6451/6: +822 577 6457 Malaysia: +60 03 904 4611; +60 03 904 4600 Netherlands Antillies: +5999611 987; +5999611 744 Singapore: +65 291 7123; +65 292 5831 South Africa: +27 622 1743; +27 622 1306 Taiwan: +8862 364 3456; +8862365 3434 Thailand: +662512 1438 Thrkey: +90 11 481 610 Austria: +43 2222 25343; +43 2222 253434 Belgium: +31 1640 9000; +31 164066651 Czech Republic: +43 222225343; +43222 253434 Denmark: +45 42 459764; +45 43 630720 Finland: +35802941773: +35802947084 France: +33 1 6472929; +33 164470084 Germany: +492529383; +4925291649 Hungary: +43 2222 25343; +43 2222 253434 India: +9122223401; +9122942222 Italy: +39499200975; +39495566164 Korea: +82 2 5699854; +82 2 5615992 Luxembourg: +31 1640 9000; +31 164066651 Malaysia: +60 3 7334236; +60 3 7336281 Netherlands: +31 1640 9000; +31 164066651 Norway: +47 32852080; +47 32 852208 Singapore: +65 7485791; +65 7485791 Slovak Republic: +43 2222 25343; +43 2222 253434 Spain: +34 1 5720440; +34 I 5702661 Sweden: +46854068100; +46 8 54066538 Switzerland: +4134713121; +4134713122 Taiwan: +886 2 7693863; +886 2 7567582 United Kingdom: +44933 624212; +44 933 624608 USA: +13014957738; +13014957739 AVC Instrumentation (A Division of PCB Piezotronics, Inc) Austratia: +613555-7277: +613555-7956; +612748-0544: +612 748-7016 Belgium: +3227570351: +32 2 757 06 07: +32 16402030: +32 16403166 Brazil: +55 II 535-5589: +55 II 535-5677 Germany, Austria: +49 2462 7021: +49 2462 7025 India: +91224137096: +91224133341 Israel: +972 3 6450444: +972 3 491576 Netherlands: +31 189220844: +31 189220442 Norway: +47 22161710: +47 22161950 Pakistan: +92 21 2425089: +92 21 2418354 South Korea: +82 2 5543856/9: +82 2 5544880 Sweden: +46 8 359250: +46 8 359270 HEAD Acoustics America: Sonic Perceptions, Jnc; + I 203 838 2650: + 1 203 854 5702 Germany: HEAD Acoustics GmbH, +492407 577 0; +49 2407 57799 Australia: MB. & K.J. Davidson, +615557277; +615557956 Austria: LB-electronics. +43 367 660; +43 1 369 8443 Benelux: AKRON, +32 757 03 51; +32757 06 07 France: elexo, +33 I 69302880; +33 I 69306851 Italy: S.C.S., +3924504111; +394504110 Japan: CRIE, +81 63522026; +81 63529438 Korea: ABC Trading, +82 2 576 3161; +82 2 576 3163 Taiwan, R.O.C., P.R.C., Hongkong: Samwcll Testing, Jnc., +886 6488455; +8866483024 United Kingdom: HEAD Acoustics UK Ltd., +44322863 350; +44 322 860 026 NorsonicAS Australia: +61 22675939; +61 22618294 1994 March Noise/News International 63 DIRECTORY OF NOISE CONTROL SERVICES Information on listings in the Directory ofNoise Control Services is available from INCEIUSA, P.O. Box 3206 Arlington Branch, Poughkeepsie, NY 12603, USA. The price is USD 325 for four insertions. CAVANAUGH TOCCI ASSOCIATES INC. CAMPANELLA ASSOCIATES INC. Consultants in Acoustics DESIGN: Architectural - Structural - Mechanical - Environmental William 1. Cavanaugh, INCE. Bd. Cert. Gregory C. Tocci, INCE. Bd. Cert. Timothy J. Foulkes, INCE. Bd. Cert. K. Anthony Hoover, INCE. Bd. Cert. Douglas H. Bell, INCE Sheryl Soloman, INCE Deborah 1. Blasinsky, INCE Assoc. Brion G. Konig, INCE Assoc. 327F Boston Post Road, Sudbury, MA 01776, USA Telephone: (508) 443-7871 FAX: (508) 443-7873 SCANTEK, INC. Sound and Vibration Instrumentation & Engineering • Sales, Rentals, Service • Technical Support • Consulting Richard J. Peppin, INCE President - Stndios & Music Halls - Condos & Apartments - Scientific and Seismic Equipment Isolation - Transportation & Industrial Noise - OEM: ACCULAB Reference Sound Sources FIELD TESTING: - ASTM, ANSI - AMCA, ASHRAE - HUD, FAA - Sound Power - Intensity - FEM Analysis Services 3201 Ridgewood Drive Columbus, OH 43026-2453 USA Telephone: (614) 876-5108 FAX: (614) 771-8740 EGGERS INDUSTRIES Manufacturers of Wood Acoustical Products; complete line of doors, panels and custom products. • Offered in all available foreign and domestic veneers • Doors available with 20-minute fire ratings • Products tested to E-90-90 and E413-87 916 Gist Avenue Silver Spring, MD 20910 USA Telephone: (301) 495-7738 FAX: (301) 495-7739 164 Lake Street Neenah, WI 54957, USA Telephone: (414)722-6444 FAX: (414) 722-0375 ACENTECH INC. CHARLES KULMAN 28 Technical Professionals Available for Collaboration in: - Architectnral, Environmental and Industrial Acoustics - Noise and Vibration Control - Structnral Vibrations and Structnre-bome sound - Audiovisual, Video and Sound System Design Consultants in • Room and building acoustics • Thermal building physics • Noise and vibration control • Air pollution control • Machinery acoustics • Laboratories and testing facilities Robert-Koch-Strasse 11 8033 Planegg (near Munich) Germany Telephone: +49 89 856020 FAX: +49 89 85602111 HESSLER ASSOCIATES, INC. Consultants in Engineering Acoustics Serving the Power Industry Since 1976 - Environmental & Plant Noise Measurements - Computer Modelling of Facility Noise Emissions - Expert Witness & Environmental Assessments - Equipment Noise Control Design & Specification George F. Hessler Jr., P.E., Mem. INCE 6400 Wishbone Terrace P.O. Box 77 Cabin John, MD 20818 USA Telephone: (301) 229-4900 FAX: (301) 320-6714 SOUND TECHNOLOGIES INC. Motor Sports Sound Abatement 7415 Gum Grove Lane Vacaville, CA 95688-9653 USA Telephone: (916) 678-8815 Contact Eric E. Ungar, Sc.D., P.E. INCE/USA Past President - custom designed industrial products to suppress noise - acoustical enclosures and panel lagging systems - tnned-dissipative and absorptive silencers - combustion turbine and heat recovery steam generator noise supression systems P.O. Box 600 Michigan City, IN 46360 USA Telephone: (219) 879-2600 FAX: (219) 879-2611 125 Cambridge Park Drive Cambridge, MA 02140 USA Telephone: (617) 499-8000 FAX: (617) 499-8074 64 MULLER-BBM Noise/News International 1994 March Instrumentation Optimization (Spreadsheet And MBA ot Required) Minimum Cost Path Applications and Features ~ Maximum Feature Path Upgrade Path Model 2800 Precision Sound Level Measurements • ~ Model 2900 ./ ./ 1/1,1/3 Octave Real-time Analysis 1-Channel 2-Channel FFT Analysis to 800 lines 1-Channel 2-Channel Optional Optional PinklWhite Noise Generator Room Acoustics, including RT60, Transmission Loss, STC, la' NC ./ ./ 1/3 Octave Statistical Analysis 1-Channel 2-Channel Vehicle Pass-by Noise Measurements ./ ./ vsTime Autostore to 400 Spectra/sec ./ ./ Sound Intensity Analysis (1/1, 1/3 Octave and FFT) - Optional Structural Analysis (Transfer Function, Coherence, etc.) - ./ Tachometer Inputs and vsRPM Autostore for Vehicle Acceleration/Deceleration and Machinery Runup/Coastdown Tests - ./ Order Tracking Analysis; Levels vs RPM/Speed - ./ Three parallel AID inputs for DC measurements (temperature, pressure, humidity, etc.) ./ ./ Battery Power (rechargeable) ./ ./ AC and DC analog outputs ./ ./ External 3 1/2" Floppy Disk Drive Optional Optional Multi-Window Color Display and Mouse Control of Instrument Optional Optional In The Field... Reader Service Number 4 In The Lab... .1 Providing precision accuracy and benchtop power in a notebook size package LARSON-DAVIS ~~ LABORATORIES 1681 West 820 North' Provo, Utah 84601 • Phone: (801) 375-0177 • FAX: (801) 375-0182 FRO M N 0 I S E TO SOU N 0 • • • Noise levels and sound quality are increasingly important in our developed, technological environment. Acousticians are responsible to their clients for providing the optimal acoustic behavior of theaters, concert halls, workshops or industrial plants. RAYNOISE is an advanced, flexible computer program, giVing you powerful capabilities in the analysis of room acoustics, industrial noise control and exterior and environmental noise. RAYNOISE has been developed by the specialists in acoustics and computer-aided analysis who brought SYSNOISE. you RAYNOISE interfaces with standard CAD programs, is easy to learn, and ·is HEADOUARTERS : Numerical Integration Technologies NV. Ambachtenlaan J Ja 3001 Leuven, Belgium Tel. +32 16400422 Fax +32 164004 14 S Y S T E M FOR equipped with a powerful command language and postprocessor with graphical user interface. If your noise problems need a fast Reader Service Number 9 GEOMETRICAL solution, ask for full details and a demo disk. ACOUSTICS