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Re: Sound Source Segregation and head motion
Fred...just a short comment, you seem to classify bats as: moving ears
(CF bats) and immobile ears (FM bats). Eptesicus fuscus (big brown bat),
for example, is an FM bat and it has moving ears....
I'm curious to see your documents could you please send them to me?
Thanks a lot
-elena
Fred Herzfeld wrote:
Hi List Members,
I was hoping that I would get my web site up but it is not yet
functioning. I therefore want to let everyone know that I have what
looks like a working model of the casa problem. While it will NOT
separate multiple sound sources coming from the same identical speaker
(there the work of Al Bregman comes into play) it will accurately
determine for any number of locations in 3-D space and for each such
point the frequency content, the phase angles between harmonics, the
amplitude at the source of each harmonic and the delay from that point
in space to a SINGLE receiver. As far as I can tell it is the method
used by the CF bats, the FM bats and the odontocetes. The mathematics is
extremely simple. It explains the precedence effect, reverberation, the
function of HRTF and and why some bats have moving ears (CF bats) and
some have immobile ears (FM bats). I have 3 MS Word documents which I
will send upon request. (I don't want to send attachments to the entire
list)
Document 1..Draft of letter to Nature. 56 KB
Document 2..Draft of Patent Application without claims 100 KB
If in some of your papers or publications you use the expressions
in-harmonic, an-harmonic or some other expression instead
"non-resolvable" please also request:
Document 3.. "The Fundamental Frequency of a Vibration" MS Word 30 KB
Please request by document number. I will send each as a single
attachment to separate e-mails.
Fred
--
Elena Grassi, Ph.D.
Perceptual Interfaces and Reality Lab
University of Maryland
3355 A. V. Williams Bldg
College Park, MD 20742
301-405-2876 (office) 301-314-9920 (fax)