To (partly) answer my own question: pvwarp~ in FFTease can do this; it applies different multipliers to different partials.

However, the determination of the actual warp function seems somewhat elusive. Has anyone had any experience with this external? It sounds great, but I can't figure out how to specify the function.

Thanks anyone, Zax

Hello list,

Let me separate this question from my previous post: Does anyone know how to make a non-linear spectral stretch in pd?

I'd like to transpose a sound so its spectrum is not equally transposed.

I played with ssb-modulation which perform spectral shifting, but I couldn't figure out how to move from that to spectral stretching. Any thoughts?

Much appreciated, Zax

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