speech/music characteristics

[Sue Johnson <sej28@xxxxxxxxxxxxx>]

Hi!
I'm working in speech recognition, and am trying to be able to distinguish
between speech and non-speech (especially music) sounds in an audio track.
I wondered if anyone had any ideas (for example from a speech/music
perception point of view) of the things that characterise music and
speech. For example, is the periodicity important, or is it to do with
continuity?

How do we know when something is music and something is just noise?
How does the brain recognise music, how can you recognise both music and
speech if they are played at the same time..

If anyone has any ideas, or knows of any publications in this area, I'd be
really interested..

thanks alot
Sue Johnson (sej28@eng.cam.ac.uk)

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