IX. THEPHONOGRAPH AND ITSFUTURE. such pro Of all the writer's inventions, none has commanded the civilized world as has found and earnest attention throughout This fact he attributes the phonograph. largely to that peculiar its the within of invention which range of possibilities brings ity as as all well of the speculative people, thinking imaginations to the almost universal foundation of the applicability principle, up and retaining of sounds hitherto fugi namely, the gathering at will. tive, and their reproduction and" prophetic From the very abundance of conjectural opin the is ions which have been disseminated press, the public by liable to become confused, and less accurately informed as to the than if the inven immediate result and effects of the phonograph to certain specific applications, tion had been one confined and The writer has no fault therefore of less interest to the masses. to find with this condition of the discussion and of the merits are so his of the invention; for, indeed, possibilities possibilities so numerous and the probabilities that he?though illimitable in a some himself subject to the influence of familiar contact?is what chaotic condition of mind as to where to draw the dividing In point of fact, such line cannot with safety be defined in line. at so early a stage of their development. In ordinary inventions an invention of the nature and scope of the phono the case of it is practically to indicate it to-day, for to impossible graph, a trifle may extend it almost morrow indefinitely. There certain stages in the developing are, however, process which have thus far been actually reached; certain others which are are in reach; and others which, clearly within though they as the light of to-day classed be to-morrow may possibilities, come probable, and a little later actual achievements. It is the to the intention of the writer in this article to confine himself THE NORTH 528 AMERICAN REVIEW. to the end that a clearer conception actual and the probable, of realizations of the phonograph may be had. He the immediate of science the im concedes to the public press and the world and of work the upon pointing commenting aginative possible. in which this has already It is in view of the liberal manner treatment he has received at their been done, and the handsome to dis hands, that he for the first time appears in propria persona cuss and comment upon the merits of one of his own inventions. In order to furnish a basis upon which the reader may take in his pre his stand, and accept or combat the logic of the writer a few of the phonograph, sentment of the probabilities categori are put and answers given upon the essential cal questions feat : ures of the principle involved a complex 1. Is a vibrating plate or disk capable of receiving shall correctly represent the peculiar property motion which of vocal and other sound-waves ? each and all the multifarious The telephone answers affirmatively. be transmitted 2. Can such complex movement from such a means attached of thereto, to single embossing-point plate, by such with effect a record upon a plastic material by indentation, same varied and com as to to the such indentations fidelity give this embossing-point, upon being and, if so, will plex form; over it thus with such follow the record made, fidelity as passed to retransmit to the disk the same variety of movement, and thus or reproduction of the vocal or other sound effect a restoration to producing essential loss of any property waves, without upon the ear the same sensation as if coming direct from the original source ? to this may be summed up in a statement of the move of for of the power that, by application uniformity to many and and by attention seemingly unimportant ment, and material of the embossing minor details, such as the form of the plate, the character of the point, the proper dampening over the of the mouth-piece the formation material embossed, at times various the has the writer past etc., during plate, such degree of accuracy in these waves with weeks reproduced each and every detail as to enable his assistants to read, without columns of a newspaper article the loss of a word, one or more the into to them, and which were unfamiliar apparatus spoken The fact answer THE PHONOGRAPH AND ITS FUTURE. 529 The when loss was they were not present. only perceptible found to be in the quality of the utterance?a in non-essential the practical of the apparatus. application Indeed, the articula tion of some individuals has been very perceptibly improved by the phonograph, the original utterance passage through being of lip and mouth mutilated and these by imperfection formation, or corrected mutilations eliminated of the pho by the mechanism nograph. 3. Can a record be removed from the apparatus upon which it was made, and replaced upon a second without mutilation or loss of effective power to vibrate the second plate ? no greater ob This is a mere mechanical detail, presenting stacle than having proper regard for the perfect interchangeable ness of the various working so nice a parts of the apparatus?not as the manufacture of the American watch. problem as to 4. What and removing the record facility of placing as to and its mail ? sheet, transportation by But ten or fifteen seconds suffice for such placing or remov al. A special envelope will probably be required for the pres and form of which, however, will but ent, the weight slightly increase the cost of postage. as to durability 5. What ? have proved that the indentations experiments Repeated pos sess wonderful has enduring power, even when the reproduction been effected by the comparatively rigid plate used for their pro It is proposed, however, duction. to use a more flexible plate for a with smooth stone point?dia which, reproducing, perfectly mond or sapphire?will render the record capable of from 50 to 100 repetitions, enough for all practical purposes. as to duplication 6. What of a record and its permanence ? more or have been made with less experiments success, Many in the effort to obtain electrotypes of a record. This work has been done by others, and, though the writer has not as yet seen he is informed it suc has been it, that, very recently, reliably can see no He cessfully accomplished. great practical certainly in the way. obstacle of an indefi This, of course, permits nite multiplication of a record, and its preservation for all time. 7. What are the requisite force of wave impinging upon the THE NORTH 530 AMERICAN REVIEW. to the diaphragm and the proximity of the mouth to diaphragm effect a record ? These depend in a great measure upon the volume of sound in If the the is to be made desired reproduction. reproduction force is requisite in the orig audible to an audience, considerable if for the individual ear, only the ordinary con inal utterance; has been reproduced). tone (even a whisper In both versational are delivered cases the original utterances in the mouth directly An audible reproduction may, how piece of the instrument. a at had instrument the from distance of be ever, by speaking The application from two to three feet in a loud tone. of a flar or funnel the to collect and the tube sound-waves construc ing and tion of an especially delicate diaphragm embossing-point, to effect themselves etc., are the simple means which suggest The writer has not as yet given this stage of the develop this. in gathering ment much attention, but sees no practical difficulty a sectional the of sound-waves diffused up and retaining part a radius of, say, three feet about the original source, within (suf to a speaker or a singer). removed not to be annoying ficiently of the stage of development The presentment foregoing de reached by the several essential features of the phonograph as faits the following monstrates accomplis: of sound-waves of all manner heretofore captivity " as retention. and their permanent fugitive," designated all their original characteristics 2. Their reproduction with at will, without the presence or consent of the original source, and after the lapse of any period of time. 3. The transmission sounds through the or of such captive in material trade and of commercial intercourse channels dinary or as merchantable form, for purposes of communication goods. 1. The 4. Indefinite without regard multiplication to the existence and preservation or non-existence of such sounds, of the original source. the knowledge 5. The captivation of sounds, with or without or consent of the source of their origin. of the phono of these properties The probable application in and scientific of branches and various commercial the graph more or less of exercise the indicated will require dustry presently that the apparatus is practi mechanical Conceding ingenuity. THE PHONOGRAPH AND ITS FUTURE. 531 in so far as the faithful of sound reproduction cally perfected is concerned, many of the following will be made the applications moment the writer the new form of apparatus, which is now is finished. be classed as about completing, These, then, might so trench other but upon actualities; they closely applications to separate which will follow, that it is impossible immediately under the head of proba them: hence they are all enumerated the more impor bilities, and each specially considered. Among and other forms of dicta tant may be mentioned: Letter-writing, and such tion books, education, reader, music, record; family as books, musical-boxes, toys, clocks, ad applications electrotype and signaling apparatus, speeches, etc., etc. vertising in me apparatus now being perfected Letter-writing.?The and may be used chanical details will be the standard phonograph, as such for all purposes, except require special form of matrix, such as toys, clocks, etc., for an indefinite repetition of the same the main The of however, utility thing. phonograph, being for and other forms of dictation, the de the purpose of letter-writing a view to its utility for that purpose. sign is made with The general principles of construction are, a flat plate or disk, on the with under face, operated by clock-work spiral groove neath the plate; the grooves are cut very closely together, so as to give a great total length to each inch of surface?a close calcu lation gives as the capacity of each sheet of foil, upon which the record is had, in the neighborhood of 40,000 words. The sheets being but ten inches square, the cost is so trifling that but 100 wrords might be put upon a single sheet economically. Still, it is a less number of grooves whether per inch might problematical not be the better plan?it for letters?but it is certainly would desirable to have but one class of machine the world; throughout and as very extended if put upon one sheet, communications, could be transported more economically than upon two, it is im as great as that each sheet be given portant capacity possible. The writer has not yet decided this point, but will experiment with a view of ascertaining the best mean capacity. The practical of this form of phonograph for application communications is very simple. A sheet of foil is placed in the the clock-work set in motion, and the matter dictated phonograph, into the mouth-piece without other effort than when dictating to THE NORTH 532 AMERICAN REVIEW. a stenographer. It is then removed, placed in a suitable form of sent and to the corre envelope, through the ordinary channels for whom it He, placing upon his phono spondent designed. and starts his clock-work to listens what his graph, correspondent has to say. Inasmuch as it gives the tone of voice of his corre it is identified. it may be filed away as other let As spondent, time reproduced, it is a perfect record. ters, and at any subsequent As two sheets of foil have been indented with the same facility " " as a of his may thus keep a duplicate single sheet, the writer As the principal of a business house, or his part communication. ners now dictate the important business communications to clerks, to be written out, they are required to do no more* by the phono and do thereby dispense with the clerk, and main graphic method, in their communications. tain perfect privacy at home, or in the The phonograph letters may be dictated office of a friend, the presence not being re of a stenographer as as The dictation be the may quired. rapid thoughts can be or utter them. the The formed, lips recipient may listen to his letters being read at a rate of from 150 to 200 words per minute, about other matters. and at the same time busy himself Inter be thrown etc., exclamations, may emphasis, jections, explanations, into such letters, ad libitum. ere it has become uni In the early days of the phonograph, a in may possibly adopted, correspondent Hong-Kong versally a written an apparatus, thus necessitating not be supplied with case In that the writer sort. letter of the old-fashioned would use a dictating-machine, as his clerk his phonograph simply writing at leisure, causing as many words to it out from the phonograph was capable of at one time as his memory be uttered retaining This clerk need not be a ste them down. until he had written nographer, nor need he have been present when the letter was dic tated, etc. advantages of such an innovation upon the present slow, are too numerous, and too readily tedious, and costly methods to warrant their there are enumeration, while suggest themselves, with the no disadvantages coincident which will not disappear new the method. introduction of general kinds and manner of dictation which will Dictation.?All The permit of the application of the mouth of the speaker to the THE PHONOGRAPH AND ITS FUTURE. 533 of the phonograph may be as readily effected by the If the matter as in the case of letters. is for the phonograph it in in much he would up type, to use setting prefer, printer, It would his ears in lieu of his eyes. He has other use for them. in court to speak di to compel witnesses be even worth while in order to thus obtain an unimpeach rectly into the phonograph, mouth-piece able record of their testimony. is in the of the phonograph, which The increased delicacy It may then include near future, will enlarge this field rapidly. but the judge and the all the sayings of not only the witness, the utterances of public also It will then counsel. comprehend speakers. BooTcs.?Books may be read by the charitably-inclined profes for that sional reader, or by such readers especially employed purpose, and the record of such book used in the asylums of the or even with great profit and the sick-chamber, blind, hospitals, or the amusement eyes and hands may lady gentleman whose by because the greater enjoy of be otherwise or, again, employed; to be had from a book when read by an elocutionist ment than re The ordinary record-sheet, read by the average reader. a hundred as to this from book times it would will, fifty peating command a price that would pay the original reader well for the difficulty in reading it aloud in the phonograph. slightly-increased an Educational teacher, or as a Purposes.?As elocutionary primary teacher for children, it will certainly be invaluable. By it difficult passages may be correctly rendered for the pupil but for in once, after which he has only to apply to his phonograph structions. The child may thus learn to spell, commit to memory, a lesson set for it, etc., etc. when will undoubtedly be liberally de phonograph A song sung on the is reproduced phonograph a and Thus friend power. accuracy may in a us a song which an shall com morning-call sing delight evening a etc. As it musical one teacher will to be to used enable pany, master a new air, the child to form its first songs, or to him sing to sleep. the purpose of preserving Record.?For the sayings, Family the voices, and the last words of the dying member of the family ?as of great men?the outrank phonograph will unquestionably Music.?The voted to music. with marvelous 534 THE NORTH AMERICAN REVIEW. In the field of multiplication the photograph. of original ma of one and the same trices, and the indefinite repetition thing, the successful electrotyping of the original record is an essential. As this is a problem ranks among easy of solution, it properly a vast field. the probabilities. It comprehends The principal of the phonograph in this direction is in the produc application tion of Books.?A book of 40,000 words upon a sin Phonographic gle metal plate ten inches square thus becomes a strong probabil of such books over those printed are too ity. The advantages seen to need mention. Such books would be to listened readily where now none are read. more would than the preserve They emanations mental of the brain of the author; and, as a bequest to future generations, be would For the preser unequaled. they vation of languages they would be invaluable. etc.?The Musical-Boxes, Toys, only element not absolutely in the result of thus far made?which stands assured, experiments at will of Adelina in the way of a perfect reproduction Patti's voice in all its purity?is the single one of quality, and even that is not totally lacking, and will doubtless be wholly attained. If, or cabinet, of the pres it should not, the musical-box, however, ent, will be superseded by that which will give the voice and the words of the human songstress. doll which may speak, sing, cry, or laugh, may be Toys.?A safely promised our children for the Christmas holidays ensuing. as locomotives, toy?such species of animal or mechanical Every and with their natural be supplied characteristic etc.?may sounds. tell you the hour of clock will Clocks.?The phonographic the day ; call you to lunch ; send your lover home at ten, etc. work is so akin class of phonographic etc.?This Advertising, to call attention to it. to the foregoing, that it is only necessary henceforth be will and other Utterances.?It possible Speech the voices as well as the words to preserve for future generations our Gladstones, our Lincolns, of our Washingtons, etc., and to " in town and ham have them give us their effort" every greatest let in the country, upon our holidays. the phonograph will Lastly, and in quite another direction, and revolutionize the present systems of teleg perfect telephone, THE PHONOGRAPH AND ITS FUTURE. 535 is now restricted in its field of invention That useful raphy. reason of the fact that it is a means of communica by operation leaves no record of its transactions, thus restricting its tion which use to simple conversational de chit-chat, and such unimportant as are not considered of sufficient tails of business importance to record. Were this different, and our telephone-conversation recorded, we should find the reverse of the present automatically It would be expressly resorted status of the telephone. to as a our agreements we incor means of perfect In writing record. the summing up of our understanding? porate in the writing new from that which we and different phraseology using entirely in its dis of the transaction used to express our understanding thus begetting innocent cussion, and not infrequently perfectly if causes of misunderstanding. the with the Now, telephone, were to in its used the record sayings, phonograph preliminary discussion, we would not only have the full and correct text, but every word of the whole matter capable of throwing light upon seem clear that the men would find Thus it would the subject. or so in to actually it more separate a half-mile advantageous than to discuss them order to discuss important business matters, verbally, and then make an awkward attempt to clothe their under a The logic which applies to transac standing in new language. two individuals in the same office, applies with the tions between a at to two distance who must discuss the matter be force greater or mail. tween them by the telegraph this latter case, in And an orced is reenf the demands of turn, economy of time and by at mile of distance between them. increase of money every " can this application be made ?" will How probably be asked or unfamiliar with those either the by telephone phonograph. cause a plate or disk to vibrate, and these inventions Both thus produce in harmony with sound-waves those of the voice A very simple device may be made by which of the speaker. disk may be made to do duty for both the tele the one vibrating and the thus enabling the speaker to simul phone phonograph, transmit and record his message. What taneously system of at the dis telegraphy can approach that ? A similar combination tant end of the wire enables the correspondent, if he is present, to hear it while it is being recorded. Thus we have a mere pas and durable record sage of words for the action, but a complete 536 THE NORTH AMERICAN REVIEW. as the result of that action. of those words Can economy of time or money go further than to annihilate time and space, and the mere utterance bottle up for posterity of man, without other effort on his part than to speak the words ? In order to make this adaptation, it is only requisite that the more shall be made sensitive to record, and phonograph slightly in the vibrating increased the telephone force of very slightly " the receiver, and it is accomplished. Carbon Tele Indeed, the phone," invented and perfected by the writer, will already well and, as he is con nigh effect the record on the phonograph; decided vibration of stantly improving upon it, to cause a more the plate of the receiver, this addition to the telephone may be looked for coincident with the other practical applications of the and with almost equal certainty. phonograph, that no distant The telegraph company of the future?and a be simply an organization one?will having huge system of wires, central and sub-central stations, managed by skilled attend it in proper repair, sole to whose will wires be ants, duty keep to attention and give, by switch or shunt arrangement, prompt subscriber No. 923 in New York, when he signals his desire to have private communication with subscriber No. 1001 in Boston, details The minor and totally inconsequent for three minutes. seem to arise as obstacles in the eyes of the groove-travel which dis to existing methods, will wholly ing telegraph-man, wedded the needs of man;" appear before that remorseless Juggernaut?" trifles in order to surmount of man for, will not the necessities an the full benefit invention which of reap practically brings him better face to face with whom he will; still, doing the work and, and infallible scribe ? of a conscientious Thomas A. Edison. MIT OpenCourseWare http://ocw.mit.edu CMS.407 Media and Methods: Sound Fall 2012 For information about citing these materials or our Terms of Use, visit: http://ocw.mit.edu/terms .