Apple Soundtrack Pro 2 - Manual (Page 197)

Chapter 6 Editing Audio Files 197
Modifying a Clip Without Affecting Its Source Media
Any time you use multiple instances of the same clip in a multitrack project, the clip
refers to the same source media file. This means that any time you modify the media
file, all of the clips that refer to the media file are affected. How do you edit just one clip
without editing its source media? In cases where you only want to make changes to a
single clip, you can make a new copy of the clip’s media file in a new audio file project
and link this clip to the new audio file project.
To create a copy of a clip’s media file and link the clip to the new audio file project:
1 Select the clip whose source media file you want to copy.
2 Control-click the clip in the Timeline, then choose Replace with Independent Audio File
Project from the shortcut menu.
A new Soundtrack Pro audio file project is created that includes a copy of the original
audio file. Only media between the clip’s In and Out points is copied, plus handles on
either side for later trimming if necessary.
The new audio file project opens in the File Editor tab and the clip now links to the
new audio file project.
Note: The default handle duration is 5 seconds. To adjust the handle duration, choose
Soundtrack Pro > Preferences > General.