Scrubbing an Audio Track
You can scrub an audio track to hear the audio in your project as you move the playhead.
Working with Audio
To scrub an audio track
Hold the Option key down while dragging the playhead right or left in the mini-Timeline
or Audio Timeline.
Pausing the pointer in the middle of a drag while holding the Option key down loops
the five frames adjacent to the current frame.
Note: Audio looping while scrubbing is turned on by default. You can turn off looping
by choosing Motion > Preferences, clicking the Time icon, then deselecting the “Loop
audio while scrubbing” checkbox.