Losing Sync During Capture In Final Cut Pro
If you are losing sync during the capture process in Final Cut Pro, you are probably capturing audio at a different sample rate than how it was recorded. Before you hit the record button on your camera, make sure that you are aware of the rate at which your audio will be recorded at (either 12 or 16 bit). You'll have to go into the camera menu to determine this. 16 bit is where you want to be for the highest quality sound that is also DVD compliant. Being aware of your recorded sample rates will also prevent your audio tracks in Final Cut Pro from slowly slipping out of sync.

The next toward preventing sync issues during capture is to make sure that Final Cut Pro is capturing audio at the same rate at which it was recorded. A 48k capture setting will render the best results for audio capture.
Remember, if you are planning to lay this project to DVD, record at 16 in camera and capture at 48k in FCP.
