Apple Soundtrack Pro 2 - Manual (Page 186)

186 Chapter 5 Working in the Timeline
Using Markers to Align Audio Clips to Timecode
You can add a time marker at a specific timecode position in a video clip, and align
audio clips with the time marker or with a Final Cut Pro scoring marker.
To add a time marker at a specific timecode position in a video clip,
do one of the following:
m Type the timecode position where you want to add the marker in the Time display,
press Return, then choose Mark > Insert Time Marker (or press M).
m Make the Details tab active, add a time marker, select the marker handle, then enter a
new position in the Position value slider in the Details tab.
In order to add a marker at a specific timecode position, the Time ruler units must be
set to the timecode format of the video in your project.
To align an audio clip with a marker:
m Make sure that snapping is turned on and that Markers is selected in the View > Snap
to menu, then drag the clip to the position of the marker in the Timeline.
Note: You can momentarily toggle snapping by pressing N.
Scoring a Marker to the Playhead
For tracks set to Beats-based time format, you can score a time marker or Final Cut Pro
scoring marker to the playhead, so that you can synchronize the audio with the video.
Scoring a marker to the playhead adjusts the tempo so that the required number of
beats exactly fills the amount of time between the last tempo change and the marker’s
position in the Time ruler.
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.
With Markers selected,
you can align a clip
with a marker.