you might take a look at the donwloads section of the ZiMT homepage (http://www.mdw.ac.at/zimt)
There you find a patch called "spectral:cross:synth", which does both, cross synthesis and time stretching with FFT.
Hope that helps…
20.01.09 23.47 Uhr >>>
is convolution the only way to morph two soundfiles in max?