Video Sound effects Background music You can move clips by dragging them left or right in their respective tracks, and you can trim them by dragging on the edges. In fact, you’ll find that editing audio tracks is a lot like editing video tracks. Sometimes you’ll want to edit main audio independently of the video clip with which it is associated. In iMovie, first extract main audio from the video clip by selecting the clip and choosing Advanced>Extract Audio. In Studio, click the track header on the left side of the timeline to lock either the main video or main audio track. When the main video track is locked, you can edit the main audio track without affecting clips in the video track. One nice feature of iMovie is that it allows you to link audio clips to video clips. For example, suppose you’ve recorded some narration to go along with a video clip. If you decide to move that video clip to a different part of the timeline, you have to move the narration clip as well. If the two clips are linked, moving one will also move the other. To link an audio clip to a video clip in iMovie, follow these steps:
- Position the audio and video clips that you want to link in the timeline.
- Move the play head to the beginning of the audio clip.
- Click once on the audio clip to select it.
- Choose Advanced>Lock Audio Clip at Playhead.
A yellow pin appears on both the audio and video clips. If you move the video clip to a different place in the timeline, the linked audio clip moves with it. To unlink the clips, select the audio clip and choose Advanced>Unlock Audio Clip.
