On Mon, Mar 26, 2007 at 09:11:07PM +0200, Vincent Jaubert wrote: > To synchronize a midi track with an audio track, the only way, is to > edit the guitar track in the audio domain. (Jumping in late so I might be missing something...) There might be another way, if your MIDI app can be synchronized to Ardour: 1) Load your audio track into ardour 2) turn on the click track 3) adjust the initial meter & tempo to match (as closely as you can) the tempo of the audio track. 4) Press play. When the click track drifts away from the audio track, add and adjust more tempo markers as needed. Repeat as necessary. This is tedious and painstaking work, especially if the original audio has very fluid tempo and/or uses multiple meters. But for rock or pop music at least, it can usually be done. It's much easier if the original performance was recorded with a very steady tempo in a single meter, eg. using a click track. Once you've done that, if your sequencer can sync to ardour, hopefully it will Just Work :) I haven't tried this yet. But I have used the click track and tempo markers exactly as described above, to help me figure out some performances with tricky meter changes and tempo variations. -- Paul Winkler http://www.slinkp.com