Re: Bite-induced pitch shift? (Bob Masta )

Subject: Re: Bite-induced pitch shift?
From:    Bob Masta  <masta(at)UMICH.EDU>
Date:    Wed, 9 Jul 2003 08:47:45 -0400

Tom:

Thanks for your observations on pitch shift.  I'm curious why a shape
change of the external auditory canal should be implicated.  Does
this effect only apply to broadband signals, such that changing the
canal's resonant frequency might give a "formant" change in the
spectral shape?  I can't see how it could change the pitch of a
pure tone, unless the basilar membrane is also deformed somehow.

.


On 8 Jul 03, at 17:42, Thomas G Brennan wrote:

> I neglected to say that this seems to be caused by alteration to the shape
> and/or position of the external auditory canal by the mandibular condyle.
>
> Tom
>
>
> Tom Brennan KD5VIJ, CCC-A/SLP R/D - AU
> web page http://titan.sfasu.edu/~g_brennantg/sonicpage.html


Robert Masta
tech(at)daqarta.com

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