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Vocal size exaggeration may have contributed to the origins of vocalic complexity
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In: ISSN: 0962-8436 ; EISSN: 1471-2970 ; Philosophical Transactions of the Royal Society B: Biological Sciences ; https://hal.archives-ouvertes.fr/hal-03501105 ; Philosophical Transactions of the Royal Society B: Biological Sciences, Royal Society, The, 2022, 377 (1841), ⟨10.1098/rstb.2020.0401⟩ (2022)
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Predicting strength from aggressive vocalizations versus speech in African bushland and urban communities
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Static and dynamic formant scaling conveys body size and aggression
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In: R Soc Open Sci (2022)
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Predicting strength from aggressive vocalizations versus speech in African bushland and urban communities
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Kleisner, Karel; Leongómez, Juan David; Pisanski, Katarzyna,; Fiala, Vojtěch; Cornec, Clément; Groyecka-Bernard, Agata; Butovskaya, Marina; Reby, David; Sorokowski, Piotr; Akoko, Robert Mbe
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In: ISSN: 0962-8436 ; EISSN: 1471-2970 ; Philosophical Transactions of the Royal Society B: Biological Sciences ; https://hal.archives-ouvertes.fr/hal-03501108 ; Philosophical Transactions of the Royal Society B: Biological Sciences, Royal Society, The, 2021, 376 (1840), ⟨10.1098/rstb.2020.0403⟩ (2021)
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Abstract:
International audience ; The human voice carries information about a vocalizer's physical strength that listeners can perceive and that may influence mate choice and intrasexual competition. Yet, reliable acoustic correlates of strength in human speech remain unclear. Compared to speech, aggressive nonverbal vocalizations (roars) may function to maximize perceived strength, suggesting that their acoustic structure has been selected to communicate formidability, similar to the vocal threat displays of other animals. Here, we test this prediction in two non-WEIRD African samples: an urban community of Cameroonians and rural nomadic Hadza hunter–gatherers in the Tanzanian bushlands. Participants produced standardized speech and volitional roars and provided handgrip strength measures. Using acoustic analysis and information-theoretic multi-model inference and averaging techniques, we show that strength can be measured from both speech and roars, and as predicted, strength is more reliably gauged from roars than vowels, words or greetings. The acoustic structure of roars explains 40–70% of the variance in actual strength within adults of either sex. However, strength is predicted by multiple acoustic parameters whose combinations vary by sex, sample and vocal type. Thus, while roars may maximally signal strength, more research is needed to uncover consistent and likely interacting acoustic correlates of strength in the human voice. This article is part of the theme issue ‘Voice modulation: from origin and mechanism to social impact (Part I)’.
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Keyword:
[SHS.ANTHRO-BIO]Humanities and Social Sciences/Biological anthropology; acoustic communication; aggression; behaviour; evolution nonverbal vocalization; Hadza; handgrip strength
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URL: https://doi.org/10.1098/rstb.2020.0403
https://hal.archives-ouvertes.fr/hal-03501108/document
https://hal.archives-ouvertes.fr/hal-03501108/file/RSTB20200403proofs_uncorrected.pdf
https://hal.archives-ouvertes.fr/hal-03501108
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Human voice pitch measures are robust across a variety of speech recordings: methodological and theoretical implications
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In: ISSN: 1744-9561 ; Biology Letters ; https://hal.archives-ouvertes.fr/hal-03501104 ; Biology Letters, Royal Society, The, 2021, 17 (9), ⟨10.1098/rsbl.2021.0356⟩ (2021)
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Supplementary material from "Human voice pitch measures are robust across a variety of speech recordings: methodological and theoretical implications" ...
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Supplementary material from "Human voice pitch measures are robust across a variety of speech recordings: methodological and theoretical implications" ...
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Dataset from Human voice pitch measures are robust across a variety of speech recordings: methodological and theoretical implications ...
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Supplementary tables from Human voice pitch measures are robust across a variety of speech recordings: methodological and theoretical implications ...
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Recording script from Human voice pitch measures are robust across a variety of speech recordings: methodological and theoretical implications ...
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| 11 |
Dataset from Human voice pitch measures are robust across a variety of speech recordings: methodological and theoretical implications ...
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Recording script from Human voice pitch measures are robust across a variety of speech recordings: methodological and theoretical implications ...
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Supplementary tables from Human voice pitch measures are robust across a variety of speech recordings: methodological and theoretical implications ...
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Individual differences in human voice pitch are preserved from speech to screams, roars and pain cries
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Human roars communicate upper-body strength more effectively than do screams or aggressive and distressed speech
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The pitch of babies’ cries predicts their voice pitch at age 5
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The role of visual experience in the emergence of cross-modal correspondences
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The pitch of babies’ cries predicts their voice pitch at age five
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Voice-based assessments of trustworthiness, competence, and warmth in blind and sighted adults
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Low is large: spatial location and pitch interact in voice-based body size estimation
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