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Acoustical similarity

Dear list,

I am looking for "general" metrics of the acoustical (not perceived)
similarity between mono signals independent of a features extraction
stage (e.g., peak level, harmonicity etc.).

Ideally, this metric would operate on a low-level representation of the
signal (ideally the waveform).

Any ideas/comments?

Thank you,
	Bruno


~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Bruno L. Giordano, Ph.D.
Music Perception and Cognition Laboratory
CIRMMT http://www.cirmmt.mcgill.ca/
Schulich School of Music, McGill University
555 Sherbrooke Street West
Montréal, QC H3A 1E3
Canada
Office: +1 514 398 4535 ext. 00900
http://www.music.mcgill.ca/~bruno/