If Neal Viemeister or Sid Bacon are monitoring this list, they can tell you that they have seen this rapid adaptation at high frequencies in psychophysical experiments, in normal-hearing people.
Not wishing to be pedantic, but I doubt very much whether any mobile phone transducer would have a useable frequency range extending to 16 kHz. But then again, 8 kHz would work just as well for presbyacustic adults...
And as far as I recall, significant adaption in hearing is relatively rare, so much so that it used to be one of the diagnostic signs of retrocochlear (e.g. acoustic neuroma) pathology.
On 5 Feb 2009, at 17:16, Eric Jacobs wrote:
This is completely anecdotal...
As you know, kids like to put high frequency (16 kHz) ring tones on their cell phones so that adults (ie. authority figures) with compromised hearing cannot hear the phone ring.
Yesterday, my son asked "why is it that I can hear the first ring loudly, but by the third or fourth ring I cannot hear it anymore?"
I didn't have an answer, of course. But if you'd like me to investigate the phenomenon further with him, I can do that. This isn't horribly scientific, of course, but maybe useful.
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