Re: changing speed of mp3's

I routinely use Ntrack Studio for this. When a wave file has say 44100 bps, I set the working speed to 40000 bps, that's all it needs. (well it asks politely to convert the wav file(s) to the new sampling rate, and I answer No.) In my opinion it does this without loss of quality, whereas the pitch-changers loose quality. However it does not change dynamically what would be useful it the tape wasn't at constant speed.