Does pitch-shifting involve FFT ? I have VERY limited experience in DSP, and none whatsoever on uCs/DSProcessors

I've only implemented FFT,a few Filters etc. in C ... :D

I however can't see how you can shift the pitch of a signal without isolating the frequency spectrum, and i can't see how that can be done without FFT ( or any other frequency-to-time domain transformation) In short I don't know how you can alter frequency in the time domain.

If it does invove FFT, its gonna be even tougher to make it work, since it is an 8-bit device and has no MAC

If there is a way to shift frequencies in the time-domain could you just mention how it is done?

thanks
Kundi