Computation of 3-d vocal tract acoustics based on mode-matching technique
نویسندگان
چکیده
A model for calculating the acoustic characteristics of 3-D vocal tract con guration 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 signi cantly decreases the instability of computation caused by the evanescent higher-order modes. Preliminary calculation results are discussed from the view point of the in uences of the o set connection of tubes.
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