Problem with synchronizing audio with a video in iMovie, audio exported from Logic X
I tried to synchronize an audio with a video in iMovie, but doesn't work properly. The final audio (a mix of a saxophone and sample instruments) I exported from Logic X, imported it in iMovie and lined up both audios- the one from the camera (iphone) and the one from Logic, both having 2 bars of a click in the beginning. For about 1-2 minutes the audios fit, but later they are displaced. The only chance is to synchronize the video in Logic and then import it in iMovie (with the mastered sound). But I need an overdub of a piano player, same as the saxophone audio and video and then synchronize both in iMovie. That's why I need the audio track in iMovie, but it doesn't work properly.
MacBook Pro 13", macOS 10.13