This document consists of two tracks. The first track, called
Voice
(tracks can be given arbitrary names) is a mono track. On
a multichannel sound interface, it would be played back in the front.
The second track, called Background music
is a stereo track. On
a multichannel sound interface, it would be played back in the back.
For more information on sound playback, see Section 4.2. In
particular, see Section 4.3 for information about the meaning of the
Playback pop-up menu. One of the tracks is considered to be
the current track. The other tracks are drawn in a slightly lighter
shade (in this example, the current track is the Background
music
track). The current track can be changed by simply clicking
anywhere in it. This is the track on which sound effects and editing
operations are applied.