All right, Here's another installment in the never-ending questions series. I have tracks sequenced in individual midi files meant to be rendered using various softsynths/patches. The idea is to: 1. Send the midi data to the synth using pmidi or midish. 2. Record the output from the jack ports to disk. 3. Repeat 1 and 2 for each track. 4. Import the tracks and mix them, possibly recording live material on top of it. Of these, step 2 is the tricky part. Recording the output is easy enough with ecasound or even jackrec, but the problem is that there is a gap of silence between the time recording is started and the time the synth starts playing, thus making syncing the tracks a very tedious job. Is there a simple way of recording only when audio data is coming out of the jack ports? I hope I'm being clear enough. Cheers, S.M.