Dual Channel Video
Hello everybody,
I am editing a a split-screen film (two screens film). I first tried to edit each screen in a seperate timeline and then nest them into a final timeline, but that was really time consuming for the sync between the two images and for the audio editing as well (since the best thing would be to have the audio for the two screens playng together always). So I tried editing them at once, in one single timeline, using black screen masked on top of them. The problem is I am using different sized footage, and when I re-scale one image inside the mask, it spread onto the other "screen". And it is too time-consuming to always crop each image after re-scaling it. Any thoughs on that?? Thanks!
Example:

