Re: AUDITORY Digest - 18 Aug 2006 to 23 Aug 2006 (#2006-188)

[Abeer Alwan <abeera@xxxxxxxxxxxxx>]

Mohan Sondhi 1986 JASA article (Apr. 79(4):1113-6) addresses
this issue. It shows that for typical vocal tract dimensions, the
bent causes a shift in resonant frequencies below 4 kHz in the
range of 2-8%.

Regards,
Abeer

>   1. A question on area function of vocal tract (2)
>
> ----------------------------------------------------------------------
>
> Date:    Wed, 23 Aug 2006 13:18:25 -0400
> From:    xinhui zhou <zxinhui@xxxxxxxxxxxx>
> Subject: A question on area function of vocal tract
>
> Dear List,
>
>   I am having a question about area function of vocal tract,
>
>   Area function is used to describe the vocal tract shape. It is
> assumed that the bent shape of vocal tract can be regarded as a
> straight tube with varying area along the axis,and only planar wave
> propagation exists with limitation to certain frequency range.
>
>  I only undertand it intuitively .  Is there any book or paper which
> formuates the idea of area function , i.e. why a bent 3D shape can be
> simplied as a tube with area function?
>
>  Thanks in adavance,
>
> Xinhui
>
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>