[PD] Change a signal's pitch :: octaver

Marc Lavallée marc at hacklava.net
Sat Aug 27 16:15:12 CEST 2005

Le Samedi 27 Août 2005 06:21, hard off a écrit :
> i am still yet to hear a good way to change pitch in realtime.
> if you use one of these delayline pitch shifters (like in the .doc) ,
> it's going to end up sounding like a stick being run across a wire
> fence.
> and if you use some sort of pitch vocoder (fourier transformation), it
> sounds a lot more soft and human, but still has that 'wrapped in thick
> plastic' effect

Does the "phased locking vocoder" example in "doc/4.fft.examples" also sound 
like plastic to you? I like it...

These fft techniques require a lot of computing power. 
There's a patch forfor fftw3, but I never tried it:


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