[PD] PhaseVocoder

[Hans-Christoph Steiner]

You don't need to change the FFT window size to change the pitch or
duration with a phase vocoder.  The FFT window size only directly controls
the analysis of the sound, not the sound generation (but the FFT window
size does affect the sound quality).  In other words, the pitch shifting
is independent of the FFT window size in a phase vocoder.

I would be very surprised if you
couldn't make a pitch shifting phase vocoder in Max/MSP, whether or not
you can change the FFT window size, but I know offhand.

.hc

On Wed, 30 Apr 2003, simon adcock wrote:

> Hello,
> I am doing a degree in Music Technology in England,
> and am trying to build a phase vocoder to change the
> pitch of a sample without affecting its length. I know
> this can be done in PD (its one of the examples), but
> I have to build it in Max/MSP... My professor reckons
> it can't be done as you can't change the fft window
> size in Max like you can in PD. Is this right? Can it
> be done another way?
> 
> Any suggestions would be greatly appreciated!
> 
> Thanks,
> Simon Adcock
> 
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