Establishing Different Sync Relationships Between Linked Clip Items

There are many reasons you might deliberately edit the video and audio items of a clip to be out of sync with one another:

Marking a Clip as In Sync

If you’ve moved a selected clip item out of sync deliberately and you want to permanently change that item’s sync relationship to its corresponding linked audio or video items in the sequence, you can use the Mark in Sync command. Final Cut Pro marks the items’ current relationship in your sequence as being in sync.

If you move one of these items out of sync again, the out-of-sync indicator shows the number of frames to resync to the new sync point.

Note: Using Mark in Sync does not affect the original master clip in the Browser, nor does it affect your media file on disk. It only affects the selected clip items in the Timeline.

To mark out-of-sync clip items as in sync
  1. In the Timeline, select the items that you want to mark as in sync (one video and up to 24 audio items may be marked as in sync).

    Figure. Timeline window showing a selected video item and two selected audio items showing out-of-sync indicators.
  2. Choose Modify > Mark in Sync.

    The items are now marked as in sync, although their positions in the Timeline haven’t changed.

    Figure. Timeline window showing a selected video item and two selected audio items without out-of-sync indicators.

    If you select just the audio and move it out of sync, out-of-sync indicators appear.

    Figure. Timeline window showing audio items moved and with out-of-sync indicators.

    The Mark in Sync command permanently affects the sync relationship of the selected clip items in your sequence. Once you’ve modified the sync relationship of clip items, the only way to restore the original sync relationship is to manually move the clip items into the old sync relationship and use the Mark in Sync command again, or to delete the clip items and reedit a new instance of that clip into your sequence from the Browser.