Apple Soundtrack Pro - Manual (Page 156)

156 Chapter 7 Working in the Waveform Editor
To select the right channel of an audio file:
1 Move the pointer near the lower edge of the waveform display.
The pointer changes to the letter “R.”
2 Drag the pointer to select the part of the right channel you want to work with.
As you drag, the left (upper) channel of the audio file becomes darker in the waveform
display. You can also double-click in the lower part of the waveform display to select
the entire right channel.
When you play a selected left or right channel, the audio from that channel plays in
both the left and right output channels of the output. The other channel is not heard.
If you have added time or beat markers to an audio file project, you can select the area
between two markers.
To select the area between two markers:
m Double-click the waveform display in the area between the two markers. If there are
additional markers, you can expand the selection by dragging toward them.
Right channel selected