> last time I > checked, Audacity didn't support real-time effects - only effects > printed to the track. That was true until now, although I believe the latest PortAudio supports JACK and a version of Audacity incorporating this is well under way. Personally, I like to be able to undo effects because I frequently get them wrong! There is a LADPSA effects preview in version 1.20-pre1, which helps. But for real-time effects work, would an in-memory rather than disk-based application be better? Cheers Daniel