Apple Soundtrack Pro 3 - Manual (Page 178)

When you score a marker to the playhead, a set of special envelope points is created in
the project’s tempo envelope, from the previous envelope point (or the beginning of the
tempo envelope, if no previous envelope point exists) to the position of the marker. These
special envelope points are locked and cannot be moved (but can be deleted). The locked
envelope points, and the segment of the tempo envelope between them, appear red.
The tempo change created when you score a marker to the playhead is always
instantaneous; that is, the tempo changes from the previous tempo immediately, without
ramping. The distance between the two envelope points determines whether the resulting
tempo change can be heard easily. If the resulting change in tempo sounds too abrupt,
you can edit the tempo envelope to make the tempo change less noticeable.
To score a marker to the playhead
1 Select the marker’s handle at the top of the Timeline, above the Time ruler.
Click the marker
handle at the top
of the Timeline.
2 Choose Mark > Score Marker to Playhead.
The marker is scored
to the playhead.
Note: If you score a marker to the playhead, and the tempo change resulting from the
scoring operation sounds too noticeable or extreme, you can undo the scoring operation.
After undoing the scoring operation, add an envelope point to the tempo envelope at a
point after any audio clips you do not want to be affected by the tempo change, but
before the marker to be scored, then repeat the scoring operation.
You can also adjust the tempo relative to a marker’s position, so you can synchronize the
marker’s position with the Beats-based units.
To adjust the tempo relative to a marker’s position
µ
Option-drag the marker in the Timeline.
178 Chapter 6 Working in the Timeline