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Deformation of the hypopharyngeal cavities due to F0 changes and its acoustic effects

Abstract : Our observation from a male speaker showed that rise and fall of F0 in vowel production involves geometrical changes of the hypopharyngeal cavities and alters their resonance pattern. In high F0, the upper part of the laryngeal cavity widens to increase the frequency of the fourth formant, and the piriform fossa elongates to decrease its zero frequency. On the contrary, in low F0, the upper part of the laryngeal cavity is constricted to decrease the frequency of the fourth formant, and the piriform fossa shortens to increase its dip frequency. As a result, the pole and zeros generated by the hypopharyngeal cavities approximate each other in high F0, while they dissociate in low F0.
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https://halshs.archives-ouvertes.fr/halshs-00687198
Contributor : Gwénaëlle Lo Bue Connect in order to contact the contributor
Submitted on : Thursday, April 12, 2012 - 3:23:04 PM
Last modification on : Wednesday, October 27, 2021 - 2:41:55 PM

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  • HAL Id : halshs-00687198, version 1

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Hironori Takemoto, Tatsuya Kitamura, Kiyoshi Honda, Shinobu Masaki. Deformation of the hypopharyngeal cavities due to F0 changes and its acoustic effects. Acoustical Science and Technology, Acoustical Society of Japan, 2008, 29, pp.300-303. ⟨halshs-00687198⟩

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