Re: Human hearing beats the Fourier uncertainty principle: Research

[herzfeld <herzfeld@xxxxxxxxxxxx>]

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

------------------------------------------------------

Fred Herzfeld, MIT class of 1954
78 Glynn Marsh Drive # 59
Brunswick, Ga. 31525
USA

tel: (912) 262-1276
Web: http://alum.mit.edu/www/herzfeld (not up yet)
----- 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


Comments?


> > http://phys.org/news/2013-02-human-fourier-uncertainty-principle.html
> >
> >
> > (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


Thanks

Kevin=


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