You can adjust the volume levels of audio clips from the Browser, the Timeline, the Audio inspector, or the Modify menu. Volume adjustments you make in the Audio inspector or from the Modify menu are applied to the entire selection. To make more precise adjustments, you can create keyframes in the clip, and then make adjustments to points between keyframes. See Adjust audio effects using keyframes.
You can make sure the volume doesn’t exceed peak levels, which may result in audible distortion, by using the Audio meters.
Adjust volume in the Timeline
Drag the volume control (the horizontal line across the audio waveform) up or down.
As you drag, the level reading in dB appears, and the waveform changes shape to reflect your adjustments.
If you adjust the volume between two keyframes, the volume line slopes to show the change in volume between the keyframes.
Adjust volume from the Modify menu or the keyboard
Do one of the following:
To adjust the volume in +1 or –1 dB increments: Choose Modify > Adjust Volume, and choose Up or Down, or press Control–Equal Sign (=) or Control-Hyphen (-).
To adjust the volume using an absolute dB value: Choose Modify > Adjust Volume > Absolute (or press Control-Option-L).
The Dashboard display changes to show Absolute dB.
Type a positive or negative value to change the absolute volume. The volume across the entire selection is set to one dB level, and any keyframe adjustments are deleted.
To adjust the volume using a relative dB value: Choose Modify > Adjust Volume > Relative (or press Control-L).
The Dashboard display changes to show Relative dB.
Type a positive or negative value to change the relative volume. The volume is adjusted by the same amount throughout the selection, preserving any fades or other keyframe adjustments.
To silence the selected clip or range to 0 dB: Choose Modify > Adjust Volume > Silence (–∞).
The selection is silenced, and the volume control for the clip or range is set to –∞ dB.
To restore the original audio level for the selected clip or range: Choose Modify > Adjust Volume > Reset (0dB).
The volume of the selection is reset to 0 dB.
If multiple clips are selected, the volume is adjusted for all clips.
Adjust volume in the Audio inspector
In the Audio inspector, do one of the following:
Enter a value in the Volume field.
If multiple clips are selected, the volume for all clips is set to the value you entered.
Drag the Volume slider right to increase the volume, or left to decrease it.
If multiple clips are selected, the volume for all clips is adjusted relative to each clip’s original volume.
Adjust volume automatically across a selected area
For volume adjustments of a clip in the Timeline, you can use the Range Selection tool to add keyframes automatically across a selected range.
Choose Range Selection from the Tools pop-up menu in the toolbar (or press R).
The pointer changes to the Range Selection tool icon .
Drag across the area where you want to adjust the volume.
To adjust the volume within the range, do one of the following:
Drag the horizontal control in the Timeline up or down. (See “Adjust volume in the Timeline,” above.)
Drag the Volume slider in the Audio inspector. (See “Adjust volume in the Audio inspector,” above.)
Choose Modify > Adjust Volume > Silence (–∞) to silence the range.
Keyframes are automatically created along the adjustment points within the range.
Reset all volume adjustments
Disable a clip’s audio
At times, you may import clips with unwanted audio that you will never use. You can disable the audio in these clips. To ensure the best playback performance, deselect the audio components of these clips in the Audio inspector.