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Re: 2d and 3d sound localization

Hussein Slim wrote that

"the problem is
perfectly solvable by the traditional cross correlation function"

and this is quite true in simulation. Unfortunately (i) real
environments are reverberant, and (ii) cross-correlation on periodic
sounds has a tendency to place its peaks at multiples of the period
(unsurprisingly). Between these two issues, cross-correlation can be
slightly less than perfect.

In fact, better results can be obtained by using cross-correlation at
the onsets of the sound. I presented this at ASA Vancouver, May 2005
(see http://www.cs.stir.ac.uk/~lss/recentpapers/asa_onsets_2005.pdf)

--Leslie Smith

Professor Leslie S. Smith,
Dept of Computing Science and Mathematics,
University of Stirling,
Stirling FK9 4LA, Scotland
Tel (44) 1786 467435 Fax (44) 1786 464551
www http://www.cs.stir.ac.uk/~lss/
UKRI IEEE NNS Chapter Chair: http://www.cs.stir.ac.uk/ieee-nns-ukri/

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