Méthode de détermination des paramètres mécaniques du modèle à deux masses des cordes vocales

Nicolas Hermant (1) , Xavier Pelorson (1) , Nicolas Ruty (1) , Annemie van Hirtum (1) , Jorge Lucero (1)

1 GIPSA-GAMA - GIPSA - Group aeroacoustics, modeling and application

Voiced sound production results from an interaction between an air flow coming from the lung, moving structures such as the vocal folds and acoustic resonators, the vocal tract, the trachea and the lungs. Physical modelling of these interactions aims at explaining those aeroelastics or aeroacoustics phenomena but also at predicting them. This prediction aspect is of primary importance concerning the analysis and processing of many voice pathologies. The main difficulty is to link all the different parameters of the physical modelling with the anatomical and physiological reality. In this proceeding, with a simple theoretical model, a method to define the biomechanical parameters using the structure's mechanical response is presented. The point of this approach is to get rid of arbitrary or ad-hoc choices of these parameters. Then, this method is tested using a specific test bench.

Mots clés: vocal fold; mechanical response; two mass model; biomechanical parameters

Domaines: Vibrations [physics.class-ph]; Vibrations [physics.class-ph]

Nicolas Hermant, Xavier Pelorson, Nicolas Ruty, Annemie van Hirtum, Jorge Lucero. Méthode de détermination des paramètres mécaniques du modèle à deux masses des cordes vocales. RJCP 2011 - 9ème Rencontres des Jeunes Chercheurs en Parole, May 2011, Grenoble, France. pp.59. ⟨hal-00826546⟩