Apple Motion 3 - Manual (Page 1137)

Chapter 13 Working with Audio 1137
 Loop: When the last frame of the audio clip is reached, it loops back to the first
frame and plays again. This can cause a jump in the audio clip’s apparent playback
unless it was designed to be looped seamlessly.
 Ping-Pong: When the last frame of the audio clip is reached, the next iteration of
clip playback is reversed. This is mainly for reference, as Motion does not support true
reverse playback.
 Hold: With this selected, the audio stops at the loop point.
End Duration: Sets the number of frames by which the clip is extended at the end of
its duration. This value may be adjusted only if End Condition is set to a value other
than None.
Adjusting a Track’s Speed in the Timeline
Motion allows you to change the timing of audio tracks in the Timeline as well.
Important: To affect all channels of a multichannel audio file, select all the tracks in the
Audio tab (press Command-A) before making adjustments in the Timeline.
To shorten the audio clip’s duration and speed up its playback speed:
1 Move the pointer over the Out point of the audio track.
2 Press and hold down the Option key.
The pointer turns into the retiming pointer.
3 While continuing to hold down the Option key, do one of the following:
 Drag the In point of the track bar to the right.
 Drag the Out point of the track bar to the left.
As you drag, the tooltip displays the clip’s duration and speed.
To slow down an audio clip:
1 Move the pointer over the audio track in the Timeline.
2 Press and hold down the Option key.
The pointer turns into the slip pointer.
3 To lengthen the clip’s duration and slow down its playback speed, do one of the
following:
 Drag the In point of the track bar to the left.
 Drag the Out point of the track bar to the right.
As you drag, the tooltip displays the clip’s duration and speed.