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Re: Human hearing beats the Fourier uncertainty principle: Research

What Kevin states is not the only problem with our knowledge of the auditory system. In:

1289 Discrimination of surface-structured targets by the echolocating bat: Myotis myotis during flight

*        J. Habersetzer; B. Vogler

JCOPA 1983 152( ) 275-282 [JOURNAL OF COMPARATIVE PHYSIOLOGY A} PDFavailable from me

Habersetzer shows that a bat, Myotis myotis , is able to distinguish two objects with differences of only about 1/100 of a wavelegth. Not what we know about detection.possibilities. There is a lot of "stuff" we do not understand.



Fred Herzfeld, MIT class of 1954
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tel: (912) 262-1276
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----- Original Message ----- From: "Kevin Austin" <kevin.austin@xxxxxxxxxxxx>
To: <AUDITORY@xxxxxxxxxxxxxxx>
Sent: Saturday, February 16, 2013 11:07 AM
Subject: Human hearing beats the Fourier uncertainty principle: Research



(Phys.org)—For the first time, physicists have found that humans can discriminate a sound's frequency (related to a note's pitch) and timing (whether a note comes before or after another note) more than 10 times better than the limit imposed by the Fourier uncertainty principle. Not surprisingly, some of the subjects with the best listening precision were musicians, but even non-musicians could exceed the uncertainty limit. The results rule out the majority of auditory processing brain algorithms that have been proposed, since only a few models can match this impressive human performance.

Read more at: http://phys.org/news/2013-02-human-fourier-uncertainty-principle.html#jCp




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