Emax

Hi all emax heads,
Does anyone have any details about the transform multiplication feature
found on the Emax/SE and Emax II (and also on later emulators afaik).

It's one of my favourite features on the Emax and unique to E-mu I
believe. Unfortunately it's slooow, talk about 30 to 60 minutes for
very short samples. But the results are well woth the wait.

Since the algorithm is well-known, I wonder how possible it would be
to make a similar program for computers (vst-plugin maybe?). Are there
any applications out there that does something similar? Does E-Mu hold
any patents on it?

Cheers, Lars