A Modal Parametric Method for Computing Acoustic Characteristics of Three-dimensional Vocal Tract Models
Kunitoshi Motoki, Pierre Badin, Xavier Pelorson · 2001
A model for calculating the acoustic characteristics of three-dimensional vocal tract con guration is presented. A cascaded structure of rectangular acoustic tubes, connected asymmetrically with respect to their axes, is introduced as an approximation of the real vocal tract geometry. Both propagative and evanescent higher-order modes are considered in these tubes. The number of higherorder modes can be selected independently in each tube, which signi cantly decreases the instability of computation caused by the evanescent higher-order modes. Calculation results for two con gurations are discussed.