Voices of Caruso: Cognitive evaluation and acoustic analysis of reedited editions Séverine Morange IJRDA, LAM, Univ. Paris 6/CNRS UMR7190/Ministère Culture et Communication, France severine75@free.fr Danièle Dubois IJRDA, LAM, Univ. Paris 6/CNRS UMR7190/Ministère Culture et Communication, France ddubois@ccr.jussieu.fr Jean-Marc Fontaine IJRDA, LAM, Univ. Paris 6/CNRS UMR7190/Ministère Culture et Communication, France jmfontai@ccr.jussieu.fr In: K. Maimets-Volt, R. Parncutt, M. Marin & J. Ross (Eds.) Proceedings of the third Conference on Interdisciplinary Musicology (CIM07) Tallinn, Estonia, 15-19 August 2007, http://www-gewi.uni-graz.at/cim07/ Background in cognition. Our exploration of the subjective judgments of Caruso’s voices implies the close collaboration of both cognitive scientists, mainly psychologists (Dubois, D., 2006) and linguists (Morange, S., 2005) and physicists and engineers as well (Fontaine, J-M., 2001), within a situated approach of cognition and cognitive processes, as developed in the LAM. We present here a joint analysis coupling psychological and linguistic evaluations with acoustic analyses on a unique research object: A Caruso’s piece of song diversely remastered on commercial CDs. Background in music acoustics. As such, it is motivated by J-M Fontaine’s research on saveguarding and valorising sound documents of heritage interest. We are especially involved in sound information extraction from analogue carriers such as records and magnetic tapes, and "restoration" signal processing in order to get at a more precise definition of what could be “high quality” for sound recordings. Aims. Up to now, most of the studies have generally been concerned with the development of signal processing "arising sound quality", but without little feedback from auditors (even as CD consumers). The present pluridisciplinary study tends to contribute: get at such an evaluation through the elaboration of a specific experimental protocol; to determine how a diversity of audience appreciates different versions resulting from different "restoration" treatment of one single original musical recording. Method. 32 subjects were selected contrasted on age (related of their different experience of earlier technical recording devices) and on expertise concerning musical acoustics (acousticians and / or musicians vs. ordinary musiclovers). 11 excerpts of reeditions of an opera record interpreted by Caruso were selected. The listening protocol involved: Free categorization task, selection of excerpts on preference judgments. Each task involved subjects’ free commentaries about their choices. Results. A cluster analysis scaffold by a psycholinguistic processing of the verbal comments of the categories allowed to identify both commonalities and differences in groupings excerpts by the different groups of the subjects, along a diversity of criteria, varying according to age and expertise. Each excerpt can therefore be characterised both according to psychological evaluations and to acoustic analyses (spectral and temporal analyses). Conclusions. This study has enabled us to develop the idea that a musical sequence (a lyric voice) is a multi-face object (cultural, aesthetic, technical, physical), acoustic parameters being diversely linked to the various sensory experiences and expertises of evaluators. Implications. Such research and the methodology we developed acknowledge for a better understanding of listening practices and music-lover assessments here concerned with a specific musical genre (opera), and a diversity of media technology (analogical or digital records, radio…). CIM07 - Conference on Interdisciplinary Musicology - Proceedings E. Caruso (1873-1921), who was contemporaneous with audio recording processing, combined during his artistic life both stage performance and disc recording. These two types of singing activity contributed to his fame as well as to the phonographic industry development. 'restore' the old sound recordings. The high performance of current DSP have so much enlarged the possibilities to transform historical reference sound recordings that it questions what “pleasant to listen to” means for present day auditory requirements. From a simple impulse noise removal to deeper transformations by formant range enhancement, adding virtual reverberant effect, etc, these options question a possible “betrayal” of the authenticity of the recording (we don’t deal with this subject here), but also and more generally the listener’s appreciation of such modifications. Caruso's voice was recorded by the best technical and professional devices at his time, but nevertheless these recordings could not benefit from the more sophisticated ones just available a few years after he died, i.e. electrical recording developed after 1925. Therefore, the discs produced were rapidly considered as limited in quality considering the rapid evolution of technologies. However, at this period, it was the first time that recording processes offer the possibility of listening outside live lyric stage representation. In such conditions, Caruso's contemporary audience greatly appreciated the recordings (for instance, the title under study in the present paper, was reproduced up to 1 million copies). Successfully, emotion was conveyed … The present study contributes to analyse the relationships between studio operators’ actions on re-mastering and the consumers’ opinions for these new products. In a context of continual development of restoration tools, it seems to us there is an urgent need to pay attention to listeners’ appreciations, and therefore to benefit from new developments in cognitive research in order to more precisely identify auditory evaluations, in close relations with acoustic analyses and knowledge. During one century, the enjoyment of the public for the singer led to numerous reeditions using the diversity of carriers available: 78rpm discs, LPs, K7, compact discs, so to quote only the main physical vectors of communication. Due to this recording evolution, – such re-editions integrate technical devices and human interventions which more or less transform the original sound (the sound of original record). The pluridisciplinary project we are involved in integrates a situated cognitive approach of subjective assessments to the technical and historical considerations concerned with the evaluation of Caruso’s voice in contemporary restitutions. The present study involving recent insights from cognitive linguistics and psychology intends to relate technical and acoustic knowledge to investigations of present day listening attitudes and quality judgments, from a diversity of consumers and listeners. If auditory requirements evolved through new technical developments, technicians managing player and audio processing devices remain the intermediary who transcends recording apparatus to go up towards the (their?) imaginary initial performer state. New proposals have been regularly offered to play original discs including diverse technologies (optical turntable, photographic capture,…). More recently, electro-acoustic equipments have been used to improve sound restitution by means of equalization adjustment, filtering device, etc. From the late-1980s, digital signal processing (DSP) technologies have been implemented to Figure 1. Caruso’s sketch of himself. by himself: "Caruso made the record, the record made Caruso". 2 CIM07 - Conference on Interdisciplinary Musicology - Proceedings Problematic and aims quality of such new products derived from such old recordings. Such a requirement of connecting the concrete constraints of technological developments and the psychological reality of the audience’s judgments led us to conceive the present research program integrating acoustic and psycholinguistic competence. The involvement of this last domain appears to be inescapable inasmuch it allows to get at individual as well as shared representations, through people’s discourses and comments about sound quality. Such an association of different scientific contributions originated in the following questions: how does a appreciate the recording? diversity of audience quality of a musical what are the criteria along which people ground their judgments? how do they account for such judgments in their discourses, what words do they use? what relation can be identified between their judgments, their verbal comments and acoustic analyses? The hypothesis that the relevant cognitive categories, through which subjective evaluation is made, is grounded on our previous work considering that “categorical knowledge relies on an individual sensory experience, however shared through the collective appropriation of linguistic forms and discourse processing” (Dubois D., 2006). Therefore, in our common attempt to identify the relevant properties that define high quality for a musical excerpt, we set up a close cooperation between different disciplinary competences (mainly cognitive sciences and acoustics) in a joint analysis of subjective as well as physical description of a set of recordings. We will mainly focus here on the methodological issues, the results being an illustration of the productivity of such an approach that could be further applied on a larger scale to other objects (for more detailed results, see Morange S. et al., 2005). In contrast with the main stream in cognitive sciences, which relies on a priori ontological categories - processed by an abstract universal subject -, we are concerned here by subjects’ evaluations in their diversity of sensory experience and knowledge, within the field of what is presently named “situated cognition” (Dubois D. (dir.), 1991). Such an approach has already been validated in other domains in acoustics within the LAM: Urban ambiences and soundscapes (Guastavino C., 2003; Raimbault M., 2002; Dubois D. et al., 2006), warning signals (Vogel C., 1999), musical instruments (Castellengo M. et al., 1999), musical timbre (Castellengo M. et al., 2005), vocal quality in singing (Garnier M. et al. 2004), or in speech processing (Morange S., 2005). Theorical fields As far as the sonic patrimony is concerned, and with it all the processes and devices of conservation, of restoration, as well as of restitution, it is mainly the know-how and the skills of the engineers in acoustics which are mainly involved in remastering (Bassal D., 2005). The process is therefore under the control of their (implicit) aesthetic choices, that may also be influenced by the “look” or style of record factories or media channels, and also, more rarely, by some historic knowledge (Calas M. F., Fontaine J. M. 1996 ; Fontaine J-M., 2001), and seldom by sociologists (Maisonneuve S., 2004). However, the audience (music-lovers, amateurs, or media consumers) who should be first concerned are not questioned. It seems to us it would be of interest to more precisely figure out how they evaluate the Within the present work, the pluridisciplinary theoretical frame and the methodology it induces, will be applied to a specific object: A sample of a diversity of remastered recording of an extract of an opera piece. Such a complex object can be described from different points of view: 3 from a physical point of view, it is at the same time: A physical event / a sounding event / a musical event -vocal, instrumental; CIM07 - Conference on Interdisciplinary Musicology - Proceedings from a cognitive point of view, it is a multifunctional object: A technical object through the materiality of the recording / a sounding object – as acoustic and musical matter / a cultural object -endowed with specificities: Musical genre, artistic genre, historically and geographically marked, engaging aesthetical, cultural and meaningful values. producers, technicians, musicians, musicologists, (…), amateurs are also experts in aesthetics, (…) aesthetics being considered, not as a restricted domain established as a discipline, but rather as a practice experienced and developed by any music lover». Such criteria were considered in order to test the influence of subjects’ diversity of previous sensory experience regarding: We will therefore investigate this technical and cultural object in its complexity through a diversity of approaches. Methodology The experimental protocol involves three steps: the analysis of such data within cognitive and linguistic categories to be further correlated to an acoustic description of the excerpts. the type of famous lyric voiceii Constantin de Chanay H., 2001); the type of technical device involved (78rpm disc vs. digital recording ; type of player system). Tasks and instructions. Based on question sheetiii, the protocol involved: the elaboration of a listening task associated to verbal comments (partly oriented by an open questionnaire); Experimental setting As regularly processed within the psycholinguistic approach we developed, the questionnaire itself has been adjusted to the specificity of the topic and to the subjects questionedi. (cf. a a free categorization task from the listening of each excerpt and the grouping of the all excerpts along similarities and differences; followed by the selection of two excerpts on a preference judgment (the preferred one vs. the least preferred one); the subjects’ free comments about their choices for both the perceptual and evaluative tasks. Such categorization task and selection on preference judgment are common procedures in psychology, when exploring cognitive categories. However, the present originality is given by the connection of such data with a careful linguistic analysis of the verbal comments. Sources. We selected 11 recordings implemented on commercial CDs edited between 1989 and 2004, of an opera recording performed in 1907 by E. Caruso (Pagliacci, R. Leoncavallo -1890). Among these recordings, one exemplar (excerpt 1) is considered as an “original replicated” without any signal processing. For the 10 remaining remastered excerpts, no processing information is available. Analyses Psycholinguistics methods. We distinguish two ways of processing subjects’ answers: Subjects. 32 subjects were selected with a contrast in age (“younger than 30” and “older than 60”, related to their possible different experiences of earlier technical recording devices), and in expertise in musical acoustics (acoustician and/or musicians, VS ordinary music-lovers). We specially focused on the perceptive experience, with the idea borrowed from Maisonneuve, S (2001: 3) that «as well as a mathematical analysis of the clusters resulting from the categorization task defining similarities and differences between classes and preference judgments (Poitevineau J., 2004); a linguistic analysis of the free comments following the categorization tasks (selection of the verbal units with similar semantic references, see Tables 1 and 2) Acoustic analysis. Our aim was to identify the treatments that were possibly applied: Pulse noise attenuation means of digital 4 CIM07 - Conference on Interdisciplinary Musicology - Proceedings signal processing, frequency response balancing, dynamic strengthen, reverberation adding, speed / pitch adjustment, etc. To define acoustic description characteristics applied to Caruso’ voice, solo or accompanied by the orchestra, we carried out selected sequence analyses of waveform, narrow band spectrum, averaging 1/3 octave band, spectrograms ... These acoustic analyses are to be put together with the subjects’ categories, their preferences, and their verbal comments. background noise, distance effect, lack of contrast, dated aspect. Results Very detailed spectrographic analyses revealed two procedures used to remove pulse defects (always present on 78 rpm records): Adaptative signal processing (excerpts 8 and 10), and steady filtering (excerpts 3, 5 and 11). Acoustic properties Acoustic analyses have been conducted in a comparative manner so as to qualify the different versions. We established exact identity between two recordings (excerpts 3 and 5), for which it is worth noticing that they present a significant dynamic reduction (musical nuance attenuation), probably due to secondary effects induced by signal transformation. Categorical structures The mathematical analysis (sorting algorithm, Barthélemy et al., 1988) allowed the identification of the grouping of excerpts as categories: some categories subjects; are common to some are specific to the different groups of subjects depending on the age and expertise as shown here below. Apart from three versions (excerpts 1, 7, and 10), bass frequency (under 120Hz) has been systematically removed: This very low band region contains little musical information but a lot of noise … all One-third octave band spectral analyses reveal filtering and equalization processing that tend to balance the resonance effect from the original recording device (gramophone horn, sound box, …). Verbal descriptions The association of the categories identified here above with verbal comments revealed common and diverse features. This observation can be made at the level of the cognitive functions that those features and categories induce. The evaluated object (the lyric voice) was interpreted by the subjects as: an external event (ex: ”bruit de fond au premier plan”iv - background noise in the foreground); a feeling (ex: dryness of interpretationv); a spatial source (ex: reverberation as in churchvi); a temporal source, reminder of a dated aspect (ex: the needle of an old phonographvii), or a modern aspect (ex: CD styleviii). The addition of reverberation is detected on two versions (excerpts 8 and 10) and, to a lesser extent on a third version (excerpt 2). Such an artificial device endows the singing voice and the orchestra with sonorousness and a certain presence. Among main studied acoustic properties, we must mention the different playing speed from one version to the text, with resulting variance of nearly quatertone (excerpt 4: Lower pitch, excerpt 7: Higher pitch). However, the musical sequence did not permit any subject to detect pitch variation (singer voice in vibrato regime, orchestral cluster, filtering effect …). Finally, we correlated the analyses of the psychological evaluations (non-verbal free categorization and verbal comments), with the acoustic descriptions related to their possible correspondences. In this way, a lot This comparison of cognitive and linguistic data also allows the characterisation of each excerpt. For example, the same excerpt (excerpt 1) has been described by most of the subjects through the criteria of dominant 5 CIM07 - Conference on Interdisciplinary Musicology - Proceedings properties correspond filtering, reverberation. of categories emerged. We present the more significant ones. to: Frequency area, cracks, kHz Main categories 6 Four categories are specific to: 5 all the subjects; the excerpts preferred by the most of the subjects; 4 the younger and the older subjects; 3 the expert subjects. 2 The two first categories will be presented with tables and figures. The next two will be mentioned more briefly. 1 1 All subjects classes. A category common to most subjects was identified through the grouping of three excerpts (excerpts 3, 5 and 11). Moreover, in their comments, subjects gave similar references, that we ascribe to acoustic properties: 2 3 4 5 6 7 8 9 10 11 0 Figure 2. The excerpts Spectrograms present. time evolution (5 s on X-axis) of frequency components (0 to 6 kHz on Y-axis) which is displayed for each sequence. Distribution of instrumental harmonic tones and voice formant areas is revealed means of color or grayscale. Filtering conditions, formant reinforcement, signal treatments, pitch definition, are related in detail by such a useful representation. the mention of reduced background noise and of clean aspect, that can be ascribed to filter addition; Preferred excerpts classes. Half of the subjects agreed on a second class through the grouping of the same two excerpts on the preferred criterion (excerpts 10 and 11, cf. Fig 3). the mention of infra-bass (which can induce a fullness of the sound or of the voice), and of balance, can be ascribed to a low register. Their commentaries further revealed the same references as for the first class, which we attribute, in the same way, to the same acoustic properties (cf. Table 2). The “clean aspect” seems to be here a criterion of positive choice: The excerpt 10 is declicked and has filter addition, and the excerpt 11 has reverberation added (more on Fig 4). We present below a summary table of both the psycholinguistic and acoustic properties (cf. Tab. 1), and a spectrogram illustrating the frequency of each excerpt (cf. Fig. 2). ALL SUBJECTS CLASSES (excerpts 3-5-11) Psycholinguistic properties reduced background noise (reasonable background noiseix), presence of the bass (big noise levelx), fullness of the sound (roundxi), fullness of the voice (sultryxii), balance (well balancedxiii), clean aspect (it sounds like CDxiv) Acoustic properties infra-bass, non declicking, filter addition, natural reverberation Table 1. The Psycholinguistic properties present the commentaries summed up as semantic references (and not as verbatim) describing a notion (ex: background noise), qualified and evaluated (ex: reduced, important…). A verbatim is given as an example of one explicit subject’s comment (here in italics). The Acoustic Figure 3. The histogram presentation of all subjects answers to the question concerned with the selection of the preferred excerpt: X-axis corresponds to each excerpt; Y-axis corresponds to the number of subjects 6 CIM07 - Conference on Interdisciplinary Musicology - Proceedings having chose such excerpts. It is interesting to point out 2 extreme excerpts: The non appreciated one without any treatment (noisy but complete information present: Excerpt 1), and the preferred version (very “clean” but partial information is lost: Excerpt 11). background noise as a cue pointing to the historical characteristic (ex: very old recordxx) of the recording in association with the perception of the distance of the voice and the orchestra. These two groups can be explained in relation to identical acoustic properties, but with different meanings given to it by the different groups of subjects, with high and low frequency ranges for younger and older subjects respectively. PREFERRED EXCERPTS CLASSES (excerpts 10-11) Psycholinguistic properties reduced background noise (with the less interferencesxv), presence of the bass (enough bassxvi), balance (voice and music at the same levelxvii), fullness of the sound or the voice (rounder resonancexviii) Acoustic properties lot of infra-bass, non (11) declicking (10), non (10) filter addition (11), natural reverberation (11), added reverberation (10) Experts and non experts subjects’ classes. Experts’ grouping on their side (excerpts 8 and 10) relies on the identification of technical devices such as background noise and reverberation (ex: reverberating room, low cracklesxxi), probably attributed to declicking and added reverberation processing. Whereas experts tend to pretend to a more “objective” evaluation of the sound per se, in contrast, non-experts subjects were mainly grouping through an evaluation of their feelings or through the reminder induced by the stimulation. Table 2. Cf. Table 1 for the legend. Conclusion The preservation and restoration of musical recordings involve a necessary collaboration of physical sciences and signal processing knowledge and human sciences. The first ones are obviously concerned with the recordings as a physical object whereas the latter deals with the evaluation of them as cultural objects that may vary across time and across the diversity of individuals. Then, the diversified properties identified at the issue of the cognitive and linguistic analyses revealed the “heterogeneous modalities of our inclinations“ (Hennion A., 2002). In other words, the different listening practices depend on our own attitudes and motivations (technical, aesthetic, hedonistic), and on our previous knowledge and experience as ordinary listener or expert, that may give different meanings to the “same” sound. Figure 4. Frequency analysis 1/3 octave band. To bring acoustic measurement closer to perceptive consideration, sound level (extraction and average energy signal done during sequences duration) is displayed (in dB) in a range of frequencies. On a logarithm scale, audible spectrum (20 Hz to 20kHz) is presented means of 3 equal bandwidth in each octave (doubling of frequencies region partition). We observe filtering effect of low and high frequencies (excerpt 10 and 11 vs. excerpt 1) and enhancement effect on medium frequency range (excerpt 10 and 11 between 160 and 500 Hz). Age’s subjects classes. Most subjects agreed on excerpt 1 through the mention of background noise, but they focused differently depending on their age. Younger listeners were grouping excerpt 1 with excerpt 9, with background noise as a technical impairment (ex: hiss interferencexix), whereas older subjects grouped excerpt 1 with excerpt 6, on Lyrical voice thus appears as multi-face object, according to a diversity of sensitive experiences and expertises of the participants. This object can be evaluated as: 7 CIM07 - Conference on Interdisciplinary Musicology - Proceedings a technical object (that may be analysed by physical parameters, and that can be changed); a sounding object (that may be analysed through acoustic properties); a cultural object (listened and evaluated as revolving to a modern or dated document). From the acoustic point of view, “the recording of the voice is problematic for technicians in spite of a more and more sophisticated material that is not always efficient: How to make restitution of an opera piece? Do we have to find out a new way of listening for musics which were created when the diffusion was only in direct? (…). Indeed, productions suffer from the historical lag of interpreting!” (Bertier M. 1986: 227). Bertier, M. (1986). Les conditions de l’enregistrement et de la diffusion de la voix chantée, in La voix dans tous ses éclats, Actes du colloque, 27-29 avril 1985, Centre G. Pompidou, Année Européenne de la Musique, 224-228. Calas, M. F., Fontaine, J. M. (1996). La conservation des documents sonores, CNRS ed., Paris. Castellengo, M., Besnainou, C., Dubois, D. (1999). Acoustic quality of musical instruments and categorization, in Actes du “137th Meeting of the acoustical society of America and forum acusticum”, Berlin 14-19 mars 1999, 12-17. Castellengo, M., Dubois, D. (2005). Timbres ou timbres? Propriété du signal, de l’instrument, ou construction(s) cognitive(s)?, (CIMO5), Cahiers de la Société Québécoise de Recherche en Musique, to be published. These observations converge with our own questions: Which treatment to choose for a “good” restoration of a musical recording, from which support (cylinder, disc), on which storage tool (analogical, digital), and last, but not least question, for which audience (musiclovers, young / old, radio listener….)? Constantin de Chanay, H. (2001). La voix d’opéra: Sémiologie et rhétorique, in Puissances de la voix. Corps sentant, corde sensible, Badir S., Parret H. (dir.), Limoges, PULIM, 91-110. Dubois, D. (dir.) (1991). Sémantique et cognition. Catégories, prototypes, typicalité, CNRS ed. Sciences du Langage. In conclusion, we thing that it worth improving our knowledge of the listeners’ practices and tastes, and its relations to their acquaintance with the artistic style (opera), and with the physical object (disc, CD, radio). Therefore, the procedure we suggested here can be further developed and generalised in order to more largely explore the recording "authenticity", that professionals involved in sound heritage may wish to promote. Dubois, D. (dir.) (1997). Catégorisation et cognition: De la perception au discours, ed. Kimé. Dubois, D. (2006). Sens commun et sens commun: Expérience sensible, connaissance(s) ou doxa ?, Langue française, to be published. Dubois, D., Guastavino, C., Raimbault, M. (2006). A cognitive approach to soundscapes: Using verbal data to access auditory categories, Acta Acustica & Acustica, 92, 6, 865-874, submitted. We expect to have provided a new productive approach to the analysis of audio perception in general, and to musical listening in particular. Fontaine, J-M. (2001). De documents sonores. Accès, dégradation, (Conservation et patrimoine culturel), 46. Acknowledgments. The authors wish specially to thanks C. Vogel for his help with acoustic analyses, and J. Poitevineau for the mathematical analyses. la restauration des Les disques noirs: restauration, CORE restauration du n°10, juin 2001, 36- Garnier, M., Dubois, D., Poitevineau, J., Henrich, N., Castellengo, M. (2004), Perception et description verbale de la qualité vocale dans le chant lyrique: Une approche cognitive, JEP2004, Fez-Maroc. References Bassal, D. (2005). La pratique du Mastering, Mac Music, online, http://www.macmusic.org Guastavino, C., (2003). Etude sémantique et acoustique de la perception des basses fréquences dans l’environnement sonore Barthelemy, J. P., Guénoche, A. (1988). Les arbres et les représentations des proximités, Masson, Paris. 8 CIM07 - Conference on Interdisciplinary Musicology - Proceedings urbain, doct. Acoust., dir. Dubois D., Paris 6. For further information on the topic cf. Morange S., Candea M., 2007. i Hennion, A. (2002). Ce que ne disent pas les chiffres … Vers une pragmatique du goût, Colloque Les publics, 28-30 novembre 2002, DEP-Ministère de la culture / OFCEFondation nationale des sciences politiques, 7 p. Would the performance be the reflect of a historical time? While vocal and instrumental techniques greatly changed? ii 1) Please, successively listen to the 11 extracts. What are your first impressions with regards to the nature of the recording of the different excerpts? iii Jones, M.R., Yee, W. (1994). L’attention aux événements auditifs: Le rôle de l’organisation temporelle, in Penser les sons. Psychologie cognitive de l’audition, Mc Adams S., Bigand E. (dir.), Psychologie et sciences de la pensée, 75-121. 2) Now, group together the excerpts that sound similar and group together in different clusters those you find different. You may create as many clusters as you wish, with different numbers of extracts in the clusters. 3) Please, assign the results of your selection and try to comment it (table). Maisonneuve, S. (2001). De la « machine parlante à l’auditeur, Terrain, n°37, Musique et émotion, 18 p. 4) Now, select 2 extracts among the 11: the one you like most, the one you like least. And try to comment it. We deliberately give the French verbatim inasmuch the English translation is seldom straightforward. For example, for the French word “chuintement”, a rapid scan of several English dictionaries gives “swish”, “(gentle or spatter) hiss”, “screech”… Morange, S. (2005). Approches structurale, prosodique, psycho-cognitive de quelques propriétés linguistiques subjectives de la parole: L’exemple de trois Montmartrois âgés, doct. Linguist., dir. M. A. Morel, Paris 3. iv v “Sécheresse de l’interprétation”. Morange, S., Candea, M. (2007). Aux frontières de l’écoute. Réflexion sur la construction des variables pertinentes dans la mise en place des tests de perception, in Frontières, dir. Morel M. A. et Delomier D., Bibl. de l’Information Grammaticale, Peters, to be published, 10 p. vi “Reverberation comme à l’église”. vii “L’éguille d’un vieux phonographe”. Morange, S., Fontaine, J-M, Vogel, C., Poitevineau, J., Dubois, D. (2005). Appartenances catégorielles d’un objet complexe, la voix: Approches linguistique et psychocognitive, 3ème Journée du Sensolier, 7 oct., CNRS - CRP, Ivry. Poitevineau, J. (2004). statistiques par psychologie: Aspect prescriptif, Math. & (3), 5-25. “Genre CD”. viii L’usage des tests les chercheurs en normatif, descriptif et Sci.hum n°167, 2004 Raimbault, M. (2002). Simulation des ambiances sonores urbaines: Intégration des aspects qualitatifs, doct. Méca. therm. génie civil, Univ. d’archit. Nantes, dir. Péneau J. P. Vogel, C. (1999). Etude sémiotique et acoustique de l'identification des signaux sonores d'avertissement en contexte urbain, doct. Acoust., dir. J-D Polack, Paris 6. 9 ix “Bruit de fond acceptable”. x “Gros volume”. xi “Rond”. xii “Chaude”. xiii “Bonne balance”. xiv “Son de CD”. xv “Le moins parasité”. xvi “Assez grave”. xvii “Voix et musique au même niveau”. xviii “Sonorité plus ronde”. xix “Chuintement parasite”. xx “Très vieux vinyle”. xxi “Salle réverbérante”, ”peu de craquements”.