After you extract an audio clip, it appears with a pushpin icon at its far left. This icon indicates that the video and audio tracks are synchronized, or locked, at that point. But you can unlock the clip, then drag it elsewhere on the Timeline. To unlock an audio clip:
Similarly, you can lock an extracted audio clip to any video clip in your movie. Locking it ensures that the sound remains synchronized, even if you add video clips later (Figure 10.10). Figure 10.10. The unlocked audio clip gets pushed further out of sync when a new video clip is added.
To lock an audio clip:
Tip
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