I'm working with a 4-track cassette recording. Two of the tracks are the stereo soundtrack, the others were sync signal and commentary. I extracted the file to mono tracks and imported into a 4-track Multitrack file and applied volume keyframes to the stereo tracks.
The problem is, for the stereo tracks, I have to apply the volume keyframes twice – to the left and right channels. I'm part way through the file and I now realise I should have converted the left and right stereo tracks to stereo first, then dragged into the Multitrack session.
Given that I now have two mono tracks (for the left and right stereo) with identical volume keyframes, how would I convert them to one stereo track and retain the keyframes?