Apple Soundtrack Pro 2 - Manual (Page 221)

Chapter 6 Editing Audio Files 221
Normalize
Choosing this command normalizes (adjusts the gain of ) the audio file or selection to
the decibel level shown in the Normalization Level field. The highest peak in the file is
raised or lowered to the level you set, and the rest of the audio file is raised or lowered
by the same amount. When you choose Process > Normalize, the level is set to 0 dB.
To set the normalization level:
1 Choose Process > Normalize.
2 In the Normalize dialog, drag the Normalization Level slider or select the value in the
Normalization Level field and type a new value.
3 Click OK.
You can preview the audio file at the normalization level before closing the Normalize
dialog. This makes it easy to set the level before normalizing the file.
To preview the file at the normalization level:
m In the Normalize dialog, select the Preview checkbox.
Adjust Amplitude
Choosing this command raises or lowers the gain of the audio file or selection by the
amount shown in the Amplitude Level field. When you choose Process > Adjust
Amplitude, the level shown in the field is zero (0) dB, or unity gain.
To set the amplitude level:
1 Choose Process > Adjust Amplitude.
2 In the Adjust Amplitude dialog, drag the Amplitude Level slider or select the value in
the Amplitude Level field and type a new value.
3 Click OK.
Silence
Choosing this command replaces the audio file or selection with complete silence.
Invert
Choosing this command inverts the phase of each sample in the audio file or selection.
Each sample’s amplitude is unchanged, but the phase is inverted. In the waveform
display, the wave’s crests become troughs and vice versa.
Reverse
Choosing this command reverses the order of the samples in the audio file or selection
so that the first sample becomes the last and vice versa.