Apple Soundtrack Pro - Manual (Page 98)

98 Chapter 5 Working in the Timeline
Using the Time Ruler
The Timeline has a Time ruler that shows the divisions of time in a project. You can set
the playhead to a precise frame, point in time, or sample number using the Time-based
units on the Time ruler, or to a specific musical measure or beat using the Beats-based
units, to synchronize playback of audio clips in the Timeline.
The Time ruler changes depending on the time format of the project and the Time ruler
units. If the project is currently set to Time-based format, Time-based units appear in
the upper part of the ruler. If the project is set to Beats-based format, Beats-based units
appear in the upper half of the ruler.
You can use the Time ruler to position clips or the playhead at a precise point in time,
including synchronizing them to a specific timecode reference in a video file.
To set the playhead to a specific point in the Time ruler:
m Click the Time ruler at the point where you want to set the playhead.
Working With the Playback Region
You can create a playback region in a project, an area that plays back repeatedly. This is
sometimes called “cycling” or “looping” playback. A project has only one playback
region, but you can move and resize it as often as you want.
You also use the playback region when recording multiple takes. For information on
recording, see Chapter 11, “
Recording Audio in Soundtrack Pro ,” on page 235.
To set the playback region:
m Drag in the bottom half of the Time ruler from the beginning of where you want the
playback region to the end.
The playback region is lighter in color than the rest of the Time ruler, with triangular
markers indicating its start and end points. If a playback region already exists, you can
drag anywhere in the Time ruler outside of the current playback region to set the
playback region to a new position.
If cycling is turned off, you must turn it on for the playback region to be active. The
Cycle button darkens to indicate that the playback region is activated.
Drag in the Time ruler to
set the playback region.
Playback region