A model for calculating the acoustic characteristics of 3-D vocal tract configuration is presented. A mode-matching technique and an impedance transformation are used to calculate the higher-order modes in this model where both propagative and evanescent higher-order modes are considered. A cascaded structure of rectangular acoustic tubes is introduced as an approximation of the real vocal tract geometry. The number of higher-order modes in each tube can be selected independently, which significantly decreases the instability of computation caused by the evanescent higher-order modes. Preliminary calculation results are discussed from the view point of the influences of the offset connection of tubes.
Cite as: Motoki, K., Pelorson, X., Badin, P., Matsuzaki, H. (2000) Computation of 3-d vocal tract acoustics based on mode-matching technique. Proc. 6th International Conference on Spoken Language Processing (ICSLP 2000), vol. 1, 461-464
@inproceedings{motoki00_icslp,
author={Kunitoshi Motoki and Xavier Pelorson and Pierre Badin and Hiroki Matsuzaki},
title={{Computation of 3-d vocal tract acoustics based on mode-matching technique}},
year=2000,
booktitle={Proc. 6th International Conference on Spoken Language Processing (ICSLP 2000)},
pages={vol. 1, 461-464}
}