Posture stabilization of the tongue for speech: responses to mechanical perturbation

Abstract : The control of tongue movements is crucial in speech production, since the tongue is responsible for the fine shaping of the vocal tract, which determines spectral characteristics of the speech sounds. Little is however known about motor control mechanisms of the tongue because of the technical difficulty to have physical access to the tongue. The study aims to investigate a control mechanism of the tongue for posture stabilization for speech. We newly developed mechanical perturbation system to change the tongue posture during speaking and examined responses to transient mechanical perturbations during speaking. We found that vocal tract shape was stabilized by compensatory responses of the tongue for vowel production. The response was faster than auditory feedback loops and tended to maintain the shape of tongue contour. The amplitude of response is also greater for voiced and whispered vowel than for posturing.
Document type :
Conference papers
Complete list of metadatas

Cited literature [10 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-02271278
Contributor : Takayuki Ito <>
Submitted on : Monday, August 26, 2019 - 4:32:27 PM
Last modification on : Friday, August 30, 2019 - 4:24:39 PM

File

Ito_ICPhS19.pdf
Files produced by the author(s)

Identifiers

  • HAL Id : hal-02271278, version 1

Collections

Citation

Takayuki Ito, Jean-Loup Caillet, Pascal Perrier. Posture stabilization of the tongue for speech: responses to mechanical perturbation. International Congress of Phonetic Science 2019, Aug 2019, Melbourne, Australia. ⟨hal-02271278⟩

Share

Metrics

Record views

23

Files downloads

13