Lifting the curtain on the Wizard of Oz: biased voice-based impressions of speaker size.

The consistent, but often wrong, impressions people form of the size of unseen speakers are not random but rather point to a consistent misattribution bias, one that the advertising, broadcasting, and entertainment industries also routinely exploit. The authors report 3 experiments examining the perceptual basis of this bias. The results indicate that, under controlled experimental conditions, listeners can make relative size distinctions between male speakers using reliable cues carried in voice formant frequencies (resonant frequencies, or timbre) but that this ability can be perturbed by discordant voice fundamental frequency (F-sub-0, or pitch) differences between speakers. The authors introduce 3 accounts for the perceptual pull that voice F-sub-0 can exert on our routine (mis)attributions of speaker size and consider the role that voice F-sub-0 plays in additional voice-based attributions that may or may not be reliable but that have clear size connotations.

[1]  N J Lass,et al.  An investigation of speaker height and weight identification. , 1976, The Journal of the Acoustical Society of America.

[2]  Wim A. van Dommelen,et al.  Speaker height and weight identification: a re-evaluation of some old data , 1993 .

[3]  M. Ryan,et al.  Call patterns and basilar papilla tuning in cricket frogs. I. Differences among populations and between sexes. , 1992, Brain, behavior and evolution.

[4]  W M Moore,et al.  Physical growth: National Center for Health Statistics percentiles. , 1979, The American journal of clinical nutrition.

[5]  D. Reby,et al.  Anatomical constraints generate honesty: acoustic cues to age and weight in the roars of red deer stags , 2003, Animal Behaviour.

[6]  Roy D Patterson,et al.  The interaction of glottal-pulse rate and vocal-tract length in judgements of speaker size, sex, and age. , 2005, The Journal of the Acoustical Society of America.

[7]  G. E. Peterson,et al.  Control Methods Used in a Study of the Vowels , 1951 .

[8]  S. Collins,et al.  Vocal and visual attractiveness are related in women , 2003, Animal Behaviour.

[9]  M. Grassi.  Do we hear size or sound? Balls dropped on plates , 2005, Perception & psychophysics.

[10]  Julio González,et al.  Formant frequencies and body size of speaker: a weak relationship in adult humans , 2004, J. Phonetics.

[11]  Norman J. Lass,et al.  The consistency of listener judgments in speaker height and weight identification , 1980 .

[12]  I. Titze.  Physiologic and acoustic differences between male and female voices. , 1989, The Journal of the Acoustical Society of America.

[13]  Joan M. Sinnott,et al.  Auditory frequency discrimination in primates: Species differences (Cercopithecus, Macaca, Homo). , 1987 .

[14]  W. Fitch,et al.  Black and White Colobus Monkey (Colobus guereza) Roars as a Source of Both Honest and Exaggerated Information About Body Mass , 2006 .

[15]  S. Collins,et al.  Men's voices and women's choices , 2000, Animal Behaviour.

[16]  W. Fitch,et al.  Vocal production in nonhuman primates: Acoustics, physiology, and functional constraints on “honest” advertisement , 1995, American journal of primatology.

[17]  N. Masataka.  Lack of correlation between body size and frequency of vocalizations in young female Japanese macaques (Macaca fuscata). , 1994, Folia primatologica; international journal of primatology.

[18]  D. Berry.  Vocal attractiveness and vocal babyishness: Effects on stranger, self, and friend impressions , 1990 .

[19]  Some aspects of dimorphism and human speech , 1986 .

[20]  S. Saez,et al.  Androgen receptors in human pharyngo-laryngeal mucosa and pharyngo-laryngeal epithelioma. , 1976, Journal of steroid biochemistry.

[21]  T. Crystal,et al.  Weighty voices and shaky evidence: A critique , 1980 .

[22]  N. Lass,et al.  An investigation of speaker height and weight identification: II. Direct estimations , 1977 .

[23]  Reinhold Greisbach.  Estimation of speaker height from formant frequencies , 1999 .

[24]  H. Giles,et al.  Speech style and social evaluation , 1975 .

[25]  T. Riede,et al.  Vocal tract length and acoustics of vocalization in the domestic dog (Canis familiaris). , 1999, The Journal of experimental biology.

[26]  M. Pickford,et al.  Sexual dimorphism in living and fossil primates , 1986 .

[27]  D. Childers,et al.  Gender recognition from speech. Part I: Coarse analysis. , 1991, The Journal of the Acoustical Society of America.

[28]  M. Hauser.  The Evolution of Nonhuman Primate Vocalizations: Effects of Phylogeny, Body Weight, and Social Context , 1993, The American Naturalist.

[29]  G. Holt,et al.  Autoradiographic evidence of sex steroid receptors in laryngeal tissues of the baboon (papio cynocephalus) , 1983, The Laryngoscope.

[30]  W. Fitch.  Vocal tract length and formant frequency dispersion correlate with body size in rhesus macaques. , 1997, The Journal of the Acoustical Society of America.

[31]  J. Hillenbrand,et al.  Acoustic characteristics of American English vowels. , 1994, The Journal of the Acoustical Society of America.

[32]  N. Davies,et al.  Deep croaks and fighting assessment in toads Bufo bufo , 1978, Nature.

[33]  Roy D. Patterson,et al.  Segregating information about the size and shape of the vocal tract using a time-domain auditory model: The stabilised wavelet-Mellin transform , 2002, Speech Commun..

[34]  S. Whiteside,et al.  Identification of a Speaker's Sex: A Study of Vowels , 1998, Perceptual and motor skills.

[35]  J. Bachorowski,et al.  Listeners judge talker sex more efficiently from male than from female vowels , 2007, Perception & psychophysics.

[36]  D. Reby,et al.  The descended larynx is not uniquely human , 2001, Proceedings of the Royal Society of London. Series B: Biological Sciences.

[37]  J. Bachorowski,et al.  Acoustic correlates of talker sex and individual talker identity are present in a short vowel segment produced in running speech. , 1999, The Journal of the Acoustical Society of America.

[38]  W. Fitch.  The evolution of speech: a comparative review , 2000, Trends in Cognitive Sciences.

[39]  H. Hollien,et al.  Longitudinal research on adolescent voice change in males. , 1994, The Journal of the Acoustical Society of America.

[40]  W. Fitch,et al.  Morphology and development of the human vocal tract: a study using magnetic resonance imaging. , 1999, The Journal of the Acoustical Society of America.

[41]  Bernd Fritzsch,et al.  The Evolution of the amphibian auditory system , 1988 .

[42]  D. Perrett,et al.  Manipulations of fundamental and formant frequencies influence the attractiveness of human male voices , 2005, Animal Behaviour.

[43]  Roy D Patterson,et al.  Discrimination of speaker size from syllable phrases. , 2005, Journal of the Acoustical Society of America.

[44]  Nick Neave,et al.  Relationships between vocal characteristics and body size and shape in human males: An evolutionary explanation for a deep male voice , 2006, Biological Psychology.

[45]  J. Abbs,et al.  Vocal fold physiology : contemporary research and clinical issues , 1983 .

[46]  D. Rendall,et al.  Pitch (F0) and formant profiles of human vowels and vowel-like baboon grunts: the role of vocalizer body size and voice-acoustic allometry. , 2005, The Journal of the Acoustical Society of America.

[47]  D R Perrott,et al.  The expanding-image effect: the concept on tonal volume revisited. , 1980, The Journal of auditory research.

[48]  S. Whiteside,et al.  Sex-specific fundamental and formant frequency patterns in a cross-sectional study. , 2001, The Journal of the Acoustical Society of America.

[49]  J. M. Dabbs,et al.  High testosterone levels predict low voice pitchamong men , 1999 .

[50]  D. Broadbent,et al.  Information Conveyed by Vowels , 1957 .

[51]  David A. Puts,et al.  Mating context and menstrual phase affect women's preferences for male voice pitch , 2005 .

[52]  W. Fitch,et al.  Perception of Vocal Tract Resonances by Whooping Cranes Grus americana , 2000 .

[53]  R. Krauss,et al.  Inferring speakers’ physical attributes from their voices , 2002 .

[54]  J. Liénard,et al.  Women use voice parameters to assess men's characteristics , 2006, Proceedings of the Royal Society B: Biological Sciences.

[55]  W. Tecumseh,et al.  Vocal Tract Length Perception and the Evolution of Language , 1994 .

[56]  Paul Boersma,et al.  Praat, a system for doing phonetics by computer , 2002 .

[57]  H J Künzel,et al.  How Well Does Average Fundamental Frequency Correlate with Speaker Height and Weight? , 1989, Phonetica.

[58]  W. V. van Dommelen,et al.  Acoustic Parameters in Speaker Height and Weight Identification: Sex-Specific Behaviour , 1995, Language and speech.

[59]  Gerald M. Edelman,et al.  Auditory function : neurobiological bases of hearing , 1988 .

[60]  R. Shuy,et al.  Language attitudes : current trends and prospects , 1973 .

[61]  W. Fitch.  Acoustic exaggeration of size in birds via tracheal elongation: comparative and theoretical analyses , 1999 .

[62]  Julio Gonzalez,et al.  Estimation of Speakers' Weight and Height from Speech: A Re-Analysis of Data from Multiple Studies by Lass and Colleagues , 2003, Perceptual and motor skills.

[63]  Richard E. Turner,et al.  The processing and perception of size information in speech sounds. , 2005, The Journal of the Acoustical Society of America.

[64]  R O Coleman,et al.  A comparison of the contributions of two voice quality characteristics to the perception of maleness and femaleness in the voice. , 1976, Journal of speech and hearing research.

[65]  J. Mullennix,et al.  Talker Variability in Speech Processing , 1997 .