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Communication Dans Un Congrès Année : 2020

Simulations of fallow deer groans from CT scanned vocal tracts

Lucie Barluet
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  • IdRef : 276937767
Megan Wyman
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Roland Frey
  • Fonction : Auteur
Ben Charlton
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David Reby

Résumé

Males of several species of deer have a descended and mobile larynx, resulting in an unusually long vocal tract, which can be further extended by lowering the larynx during call production. We CT-scanned the head and neck region of two adult male fallow deer specimens with artificially extended vocal tracts and measured the cross-sectional areas of the supralaryngeal vocal tract along the oral and nasal tracts. The CT data were then used to predict the resonances (formants) and the transfer function between the glottis and a point outside. Modelling the source signal as a succession of impulses, we synthesized groans using the calculated transfer functions. We discuss the effects of vocal tract length and potential nasalization.
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Dates et versions

hal-03230810 , version 1 (26-05-2021)

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Citer

Joel Gilbert, Lucie Barluet, Megan Wyman, Roland Frey, Ben Charlton, et al.. Simulations of fallow deer groans from CT scanned vocal tracts. Forum Acusticum, Dec 2020, Lyon, France. pp.2039-2039, ⟨10.48465/fa.2020.0102⟩. ⟨hal-03230810⟩
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