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Re: Why is high high?
There is some interesting research into the ears frequency response
variation with elevation by Mehrgardt and Mellert "Transformation
of the external Human Ear" JASA Vol. 61 No.6 pg.1567
Hope this is helpful
> -----Original Message-----
> From: Johannes Nix [SMTP:jnix@MEDI.PHYSIK.UNI-OLDENBURG.DE]
> Sent: Thursday, August 27, 1998 12:21 PM
> To: AUDITORY@LISTS.MCGILL.CA
> Subject: Re: Why is high high?
> I made recently recordings from various elevations with white noise
> signals in an anechoic room. Elevations were from -15 to 45 degrees
> and azimuths from 0 to 355. The recordings lasted about 5 hours. I
> noted clearly that the noise signal from higher elevations frequently
> seemed to have higher pitch, especially if azimuth was about -45 or
> degree. However, this can not be generalized because I have a
> high-frequency hearing loss. It would be interesting for me to know if
> someone has observed the same.
> In literature of spatial hearing there is described an inverse
> phenomenon when one hears a pure-tone from a speaker in front of him.
> Then the location perception is depending from the frequency of the
> pure-tone. This has been interpretated as 'directional bands' of the
> head-related transfer functions and is described by Blauert, 1972 (and
> 1983). The phenomenon seems to be restricted to pure tones because
> these are very difficult to localize.
> kind regards,
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