[sdiy] jitter analysis

Ian Fritz ijfritz at earthlink.net
Fri Jul 9 18:14:24 CEST 2004


At 09:35 AM 7/9/2004, Richard Wentk wrote:
>At 15:47 09/07/2004 +0200, Czech Martin wrote:
>
>>As long as we model the ear as filter bank or DFT, I can not follow
>>this argument.
>
>Well, that's the problem. You're assuming it's a very simple filter bank 
>that does a very simple spectral decomposition. But that's simply not 
>true. The ear is actually highly nonlinear, especially at high sound levels.


Exactly.  Cello students are taught to tune double-stop thirds by listening 
to the difference frequencies.  This is a very intense low frequency sound. 
Spectral analysis of recordings show absolutely that the difference 
frequency is not generated by the instrument, but rather by the ear.

   Ian




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