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Re: [Phys-l] Harmonics vs Overtones



Speaking of that ...

I had a friend in college who did hearing tests as part of her speech-and-hearing pathology work. I went in one day to get my hearing tested, and while waiting for someone else to finish, started playing with one of the tone-generating machines. I convinced myself that the 3000 Hz setting was broken -- I heard nothing at all, and told her.
She tested me later, and said that I have a very narrow bandwidth in which my hearing is ridiculously bad, and it's right at 3 kHz. She found this amusing, since according to her, that's where a lot of the information is encoded in a typical female voice. I have a marvelous excuse! My hearing is a little better than male average for my age at low frequencies, and a little worse than male average at very high frequencies.

I haven't figured out yet which are the main factors in my being deaf in that small range. I'll probably wire up a tiny pinducer one of these days and see if the sound is even getting to my eardrum; it could be a strange auditory meatus arrangement that's acting as the main filter (that's my best hope).



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Down with categorical imperative!
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________________________________
From: Bernard Cleyet <bernardcleyet@redshift.com>
To: Forum for Physics Educators <phys-l@carnot.physics.buffalo.edu>
Sent: Friday, April 3, 2009 10:05:18 AM
Subject: Re: [Phys-l] Harmonics vs Overtones

15.734 kHz; Women usually hear higher and longer.

bc, > 60 dB down at 3 kHz.


On 2009, Apr 02, , at 16:27, John Clement wrote:

I suspect
that most people on this list can no longer hear the 15kHz whistle
that
analog TVs put out. The high end goes first.

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