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(38) Computation of the Acoustic Characteristics of Vocal-tract Models with Geometrical Perturbation by Using Higher-order Modes
¡¡¡¡¡¡Ë̳¤³Ø±àÂç³Ø¹©³ØÉô¸¦µæÊó¹ð Âè32¹æ, pp.75-85, 2005-2
This paper presents computational results
of sound pressure distributions and transfer characteristics for
a large number of vocal-tract models which contain geometrical
perturbations. A small change of the vocal-tract shape is
regarded as a geometrical perturbation of the axis position
of each vocal-tract section. Computation of the acoustic field
in the models are performed using higher-order modes.
The results indicate that acoustic characteristics in the higher frequencies
are highly sensitive to the small change of the vocal-tract shape.
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