Apple Soundtrack Pro 2 - Manual (Page 222)

222 Chapter 6 Editing Audio Files
Insert
You can insert silence, noise, or a waveform in an audio file or selection. When you
choose Process > Insert, then choose one of the three items from the Insert submenu,
the silence, noise, or waveform is inserted at the current playhead position. The
remainder of the audio file ripples so that it continues after the inserted silence, noise,
or waveform.
Inserting Silence
When you choose Process > Insert, then choose Silence from the Insert submenu, the
Insert Silence sheet appears. You can set the length of silence to insert, and choose the
format for setting the length of the silence (any of the Time Ruler Units formats).
To set the length of the inserted silence:
1 In the Insert Silence sheet, choose the format you want to use from the Format
pop-up menu.
2 In the “Length of silence to insert” value slider, do one of the following:
 Click the left arrow to shorten the length of the inserted silence, or click the right
arrow to increase the length.
 Click the center of the value slider, then drag the slider that appears left or right to
change the length of inserted silence.
 Click the value in the value slider, then type a new value.
3 Click OK.
Inserting Noise
When you choose Process > Insert, then choose Noise from the Insert submenu, the
Noise Generator dialog appears. You can set the type of noise to insert, set the length
of the inserted noise, choose the format for setting the noise length (any of the Time
Ruler Units formats), and set the volume of the inserted noise.
The inserted noise can be white noise (emphasizing higher frequencies) or pink noise
(equal distribution of frequencies).