Slip, slide, and trim audio in Motion

In Motion, do one of the following:

• Choose Window > Audio Timeline (or press Command-9).

• Click the Show/Hide Audio Timeline button in the timing toolbar (above the Timeline).

  

Slide an audio track to change its position in the Timeline.

In Motion, do one of the following:

• In the Audio Timeline, drag an audio track’s green bar left or right.

• Select an audio track in the Audio list, then in the mini-Timeline, drag the track’s green bar to the left or right.

  

Slip an audio track to change the range of playable media. When you slip an audio track, its In and Out points remain unchanged in the Timeline, but the playable portion of the audio file changes.

In Motion, do one of the following:

• In the Audio Timeline, press and hold the Option key, then drag left or right to slip the portion of the audio file.

  As you drag, the pointer becomes a slip pointer, a dimmed bar representing the full range of the audio clip appears over the green bar, and a tooltip appears, showing the In and Out points of the audio clip.

  

• In the Audio list, select a track, then press and hold the Option key and drag left or right over the green bar in the mini-Timeline.

  As you drag, the pointer becomes a slip pointer, a dimmed bar representing the full range of the audio clip appears over the green bar, and a tooltip appears, showing the In and Out points of the audio clip.

  

Trim an audio track to reduce track length or to have it start or end at a specific point in time.

In Motion, do one of the following:

• In the Audio Timeline, place the pointer over the beginning or end of a green bar until the trim pointer appears, then drag left or right.

  As you drag, a tooltip shows you the new In or Out point and the duration of the modified track.

• In the Audio list, select a track, place the pointer over the beginning or end of the green bar in the mini-Timeline until the trim pointer appears, then drag left or right.

  As you drag, a tooltip shows you the new In or Out point and the duration of the modified track.

1. In the Audio list in Motion, select an audio track.

2. Open the Properties Inspector and show the Timing parameters.

3. Adjust the In, Out, or Duration value sliders.

As you adjust the value sliders, the green bars in the Audio Timeline and mini-Timeline are updated.

• In the Audio list in Motion, select an audio track, then do one of the following:

  • Change the track’s start point: Move the playhead to the frame you want, then choose Mark > Move Selected In Point.

  • Change the track’s end point: Move the playhead to the frame you want, then choose Mark > Move Selected Out Point.