Apple Soundtrack Pro 3 - Manual (Page 192)

• Multiple region markers: Because a media file may be referred to by multiple clips in a
multitrack project, you may see multiple region markers above a media file in the File
Editor. Each region marker shows the In and Out points of a clip in the Timeline that
refers to this media file. This alerts you to the fact that changes you make to this media
file may affect multiple clips.
Multiple In and
Out points
How Clips Are Affected by Media File Editing
When you modify a media file in a multitrack project, all clips that refer to that media file
are updated simultaneously. For example, if you have ten clips referring to the same
media file and you double-click one of the clips to modify its underlying media file, any
changes you make to the media file affect all ten clips.
How Source Audio File Editing Works in a Multitrack Project
When you edit a clip in place or open a clip in the File Editor tab, the way the source
audio file is handled depends on its file format.
• If the clip’s audio file format is a native Soundtrack Pro audio file project: The audio file
project is opened directly in the File Editor tab, allowing you to make nondestructive
changes to the media.
• If the clip’s audio file format is a flat file such as an AIFF or WAVE file: Soundtrack Pro
automatically creates a Soundtrack Pro audio file project for the flat file and relinks all
clips in the project to the new audio file project. This allows you to work with this media
nondestructively. Each time you save your multitrack project, any newly created audio
file project media files are saved to the Edited Media Location on your hard disk. (You
can change this location by choosing Soundtrack Pro > Preferences and then clicking
General.)
192 Chapter 7 Editing Audio in the Multitrack Timeline