Audio and video becomes gradually out of sync when editing on Final Cut Pro
Hey guys, I have been having an issue with syncing sound up to the footage I have to edit. I am a college student, and I am editing a project where, unfortunately the scratch audio on the camera has been deleted and I have to manually sync the audio and video which is fine. But for one shooting day the audio and the videos seem to be in sync at the start with the clapper and suddenly the audio just becomes gradually out of sync with the actors mouths? im not sure if this is a FCP thing or the camera but is there a way to fix it on Final Cut? any suggestions at all would be helpful thanks.