Zoom tool – Apple Soundtrack Pro 2 User Manual
Page 211
Chapter 6
Editing Audio Files
211
When you lengthen the selection using the Audio Stretching tool, any audio
overlapped by the lengthened selection area is deleted. Lengthening the selection past
the end of the file changes the length of the audio file.
If you hold down the Option key while dragging the selection with the Audio
Stretching tool, the audio following the selection area ripples forward when you
lengthen the selection and ripples backward when you shorten the selection. In both
cases, using the Option key changes the length of the audio file.
Note: Stretching an audio file by a large amount can degrade the sound quality of the
audio file.
For information about stretching an audio file numerically using the Process menu, see
“
Zoom Tool
You can zoom in on a specific part of the waveform display to make precise edits.
To zoom in using the Zoom tool:
1
Click the Zoom Tool button above the time display.
The pointer changes to a Zoom pointer.
2
In the waveform display, do one of the following:
 Click to zoom in.
 Option-click to zoom out.
 Drag horizontally to select the part of the waveform you want to zoom in on.
The waveform display zooms in on the selected area.
For information on other ways to zoom in and out in the waveform display, see
“
Zooming In and Out in the File Editor
Zoom Tool button