Re: What do we hear in High frequency hearing (Harry Erwin )

Subject: Re: What do we hear in High frequency hearing
From:    Harry Erwin  <harry.erwin(at)SUNDERLAND.AC.UK>
Date:    Fri, 8 Nov 2002 09:40:31 +0000

At 9:47 -0800 7/11/02, Brian Gygi wrote:
>Although it's certainly possible that some information from > 20 kHz is
>audible through bone conduction or standing waves or just healthy cochlea,
>what is it exactly that people are hearing in that range?  Not pitches,
>from all the available evidence.  Perhaps it is just a presence of some
>sort that adds to the timbre, which would explain the decline in sound
>quality some musicians report (I'm not aware of any rigorous tests of this,
>tho - does anyone have a reference?).

Ask Larry Scadden (NSF) about this. He has taken measurements in that
range. When an FM bat hovers in front of my face and paints me with
echolocation calls, I can feel 'something', but it's probably air
movement.
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Harry Erwin, PhD, Senior Lecturer of Computing, University of
Sunderland. Computational neuroscientist modeling bat bioacoustics
and behavior. <http://www.cet.sunderland.ac.uk/~cs0her/index.html>