Tinkering with Compressed Speech

Tim Chase blinux.list at thechases.com
Thu Oct 7 14:25:26 UTC 2004

>>The "sox" package has an
>>option for speeding up playback without changing the pitch.
> 	I am going to have to look at the man page again.  What effect
> does this?

I believe, as per the man page 
(http://ccrma.stanford.edu/cgi-bin/planetman.cgi?topic=sox) that 
it's the semi-counter-intuitive "stretch" option...you'd set it 
to stretch by a factor between 0.0 and 1.0 and it would speed up 
the playback.  It has sub-options which allow you to specify your 
window size (as I think your own code was doing) and other such 
options, but the default "stretch" option with a parameter like 
"0.8" or "0.5" should be good enough.

Groove on...


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