Hi,

I am currently working on squeak's audio capabilities. I have tried out 
some of the recording, playback and synthesis capabilities.
Right now, I would like to build a vocoder using the FFT.

The first step is to decode both input signals using the FFT and 
analyzing it's frequency bands. I found that this is somewhat already 
implemented in the class PhonemeRecognizerMorph.
Now I need to modulate the second signal with the frequencies from the 
first signal, using an IFFT.

I am not quite sure how to implement that.

Can anybody help me implementing the code for a IFFT or possibly point 
to somewhere, where it already might be implemented?


Thanks!
Corny