Adobe Premiere Pro CS4 - Manual (Page 222)

216 USING ADOBE PREMIERE PRO CS4
Editing Audio
Last updated 11/6/2011
Specify whether to play audio while scrubbing
By default Premiere Pro plays the audio when you scrub any clip or sequence containing audio in the Source Monitor,
Program Monitor, or a Timeline. You can change this setting, if you prefer silent scrubbing.
1 Select Edit > Preferences > Audio (Windows), or Premiere Pro > Preferences > Audio (Mac OS).
2 Check or deselect Play Audio While Scrubbing, depending on the option desired.
3 Click OK.
Adjusting gain and volume
Gain generally refers to the input level or volume in clips. Volume generally refers to the output level or the volume in
sequence clips or tracks. You can set gain or volume levels to make levels more consistent among tracks or clips, or to
change the volume of a track or clip. Keep in mind, however, that if the level of an audio clip was set too low when it
was digitized, increasing the gain or volume might simply amplify noise. For best results, follow the standard practice
of recording or digitizing source audio at the optimum level; this practice allows you to concentrate on adjusting track
levels.
You use the Audio Gain command to adjust the gain level for one or more selected clips. The Audio Gain command
is independent of the output level settings in the Audio Mixer and Timeline panels, but its value is combined with the
track level for the final mix.
You can adjust the volume for a sequence clip in the Effect Controls or Timeline panels. In the Effect Controls panel,
you use the same methods to adjust the volume that you use to set other effect options. It’s often simpler to adjust the
Volume effect in a Timeline panel.
You control track output levels in the Audio Mixer or a Timeline panel. Although you control track levels primarily
through the Audio Mixer, you can also do so using audio track keyframes in a Timeline panel. Because track keyframes
represent mixer automation settings, they affect output only if automation is set to Read, Touch, or Latch.
You can adjust the gain for an entire sequence with the Normalize Master Track command.
More Help topics
“ About recording audio changes ” on page 225
Normalize one or more clips
1 Do one of the following:
• You can adjust the gain of a master clip so that all instances of the clip added to a Timeline panel have the same gain
level. Select the master clip in the Project panel.
• To adjust the gain of just one instance of a master clip already in a sequence, select the clip in a Timeline panel.
• To adjust the gain of more than one master clip or clip instance, select the clips in a Project panel or sequence. In a
sequence, Shift-click the clips to select them. In a Project panel, Shift-click to select contiguous clips, or Ctrl-click
(Windows) or Command-click (Mac OS) to select non-contiguous clips.
2 Choose Clip > Audio Options > Audio Gain.
The Audio Gain dialog box opens and Premiere Pro automatically calculates the peak amplitude of the selected clips,
reporting the calculated value in the Peak Amplitude field. Once calculated, this value is stored for the selection. You
can use this value as a guide for the amount to adjust gain.