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Adjusting playback speed but not pitch (1G iPod Mini)

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Strife89:
Isn't there a plugin for Audacity for this sort of thing? Perhaps it could be ported.

Just a thought - don't stone me to death. :D

hendersj:
Thanks for the feedback guys, I'll have a look at the patch and see if that'll do what I'm looking for.  Extra CPU doesn't bother me - with no extras turned on I get about 8 hours out of my iPod as it is, but for me this would be generally for listening ripped MP3 files from audiobook discs - though I do have some old radio shows that run an hour that I'd reduce to 45 minutes for my drive to work as well.

GodEater:
Extra CPU usage might not bother you in terms of battery life, but it might bother you if it doesn't leave enough for your music to play properly...

hendersj:
That's true, but I've noticed occasional bumps when using the pitch shifter as well if I adjust it too far out.  It seems to help with the pitch shifter to increase the anti-skip buffer.

DancemasterGlenn:
The Audacity plugin uses the soundtouch library (found here), which was also used to make the pacemaker plugin for winamp. I don't know how portable the code is, but it would be cool to see it used in rockbox. I've spoken with the guy who coded it before, and he's pretty good natured. Anyone want to check out his code?

Another possible library to use would be rubber band (here), but I don't know about the portability of that code either.

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