thnks joreg,
intially i have some improvements it seems by reducing the framerate, allthough it appears that if leave the patch to run for sometime, not too long, the performance drops and the FFT response seems to go out of sync or stop responding as well as it should do.
It only happens when using an external sound source with a USB sound interface into my machine. It works fine when using the computers internal card. Presumably the processing involved with the external USB + VVVV is causing the problems?
Im wondering if a PCMIA card (for line input) would be more processor friendly and less of a CPU hog than a USB input?
what are other 4v users experiences when doing FFT with an external sound card? Same issues?
Hmm i wonder if there is anything else to tweak?