Hi, Paul, My worst days in audio and audio for video usually involved the kind of "wild sync" that is being discussed here. If the drift between channels is small enough to avoid problems, it will be easy enough to align by hand. If not, it won't help anyway. If you're ever going to marry the audio to video -- and the audio is longer than a minute or two -- then God have mercy on your soul! One wild clock is bad enough; two isn't even funny. Loudest sample is a criteria that can result in false positives -- especially if the recording is a field recording, not a studio recording. There is a point -- reached quite soon -- where it would be better to take the two sources back to analog, so that they can be rerecorded in the studio with a single A/D than to monkey with them in the asychronous state. Be a pal, a remember that good habits don't have to be broken! "One clock to rule them all..." ;) Don't encourage sloppy sync! Save yourself the work, and add a cooler feature instead -- like "Auto-Improve Lyrics"! I've been playing with Ardour, but am not sure if it has the equivalent of "Sync to Mark" that I used to use in Sonic, but that's a nice compromise between automated and manual. Cheers, Phil M -- Dept. of Mathematics, 342 Machray Hall U. of Manitoba, Winnipeg, Manitoba, Canada R3T 2N2 Office: 446 Machray Hall, 204-474-6470 http://www.rephil.org/ phil at rephil dot org