Instruction Manual

543
Basic Audio Processing
Editing Audio
• Normalize raises the noise floor; that is, while it increases the volume
of the signal, it also boosts the noise it contains. (This is true when you
raise the volume by other means, too.)
• Due to the nature and limitations of digital audio, the sum of all audio
signals played together cannot exceed the waveform amplitude limit.
Even though no individual clip is clipped, the combination may cause
distortion.
If the selection contains any loud signals, Normalize may not seem to have
any effect. This is because the volume increase is determined by the
loudest audio in the selection. If an audio clip contains segments that are
too quiet and others that are loud, you should probably split off the quiet
segments into separate clips and then normalize those.
To Normalize Audio Data
1. Select the audio data to be affected.
2. Choose Process-Audio-Normalize from the menu.
The Normalize dialog appears.
3. Drag the Normalize Level slider to the approximate level you think is
appropriate.
4. Click OK to process the selected audio.
Listen to the edited data. You can use the Edit-Undo command if you don’t
like the results, and then try a different setting in the Normalize dialog.
To Use the Gain Command
1. Select the audio data you want to edit.
2. Use the Process-Audio-Gain command to open the Gain dialog.
3. If you only want to change the overall volume of the selection, move the
New Left Channel-From Left slider and the New Right Channel-From
Right sliders by a similar amount. You can press the Audition button to
try out your edits.
4. If you want to switch the two channels, reverse all four sliders from their
present positions.
5. If you want to invert the left channel phase, click the Invert left-channel
phase button . If you want to invert the right-channel phase, click the
Invert right-channel phase button in the New Right Channel section.
6. If you want to remove center material (usually where the vocal track is),
set the New Left Channel-From Left slider and the New Right Channel-