PluralEyes was specifically designed to sync clips and create multiclips based upon their audio. However, it can also sync clips in a sequence – even if there are timecode breaks in the clips – by aligning the audio.
Audio that slowly drifts out of sync is often due to a mismatch between the sample rate at which you shot the video and the sample rate at which you captured the audio.
It’s late at night, you are wrapping up a project. Just when you think you can go home, you discover that your final export from Soundtrack Pro, doesn’t sync with your final export from Final Cut Pro. Grrr!! Now what? This article explains a very nifty technique that solves that problem in short order.