> If JACK and its clients take one minute to process > a three minute song this is "faster than realtime" Sure, but there's another meaning of realtime in the context of low or zero latency. I was thinking about hardware buffers and the impossibility of absolute realtime, more so faster than realtime operation. If you can have more than impossible. Perhaps when making a joke in future, I should put JOKE: in the subject line! Cheers Daniel