[PD] Non-linear spectral stretch

[Eran Sachs]

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