Re: [linux-audio-user] extreme time stretching

Doing some quick experiments with Soundtouch, I hear that it probably isn't going to work for "extreme" timestretching. Even doubling the length of a 4 minute soundfile results in *very* noticeable artifacts... a kind of stuttering effect as the samples get pulled apart. You won't be making a 24 hour Beethoven stretch with this one... Seems like an FFT-based approach, or a very good synchronous granulation, might be better. Pure Data has a nice phase vocoder demo patch in its documentation. You'll have to fiddle with it to get stereo, of course. But hey, it's only a help patch! ;-) Other option is the Synchgrain external for PD, as I might have mentioned earlier. I haven't tested the limits of it yet, but I know that it sounded smooth at pretty slow playbacks. d. -- derek holzer ::: http://www.umatic.nl ---Oblique Strategy # 173: "Voice your suspicions"