CHAPTER 4
104
Editing Audio
To mute existing audio data:
1 Select the desired range of audio data.
2 Choose Effects > Silence.
Unlike deleting or cutting a selection, which splices the surrounding material together,
applying the Silence effect leaves the duration of the selection intact, and simply zeros the
amplitude within it.
To insert a new duration of silence:
1 Place the cursor where you want to insert the silence. Or, if you want to replace part of
the existing waveform, select the desired range of audio data.
2 Choose Generate > Silence.
3 Enter the number of seconds of silence you want to generate. Use decimals to enter
partial seconds. For example, enter .3 to generate three-tenths of a second of silence.
4 Click OK. Any audio to the right of the cursor is pushed out in time, thereby length-
ening the waveform’s duration.
Deleting silence
The Delete Silence command detects and removes silence between words or other audio.
It’s ideal for cleaning up voice prompts and speeding up narratives without affecting the
foreground audio.
To delete silence:
1 If you want to delete silence from part of a waveform, select the desired range of audio
data. If you don’t select a range, Adobe Audition deletes silence from the entire waveform.
2 Choose Edit > Delete Silence.
3 Set the following options as desired, and click OK:
“Silence” Is Defined As Determines what Adobe Audition considers silence. In the Signal
Is Below text box, enter the amplitude value (in decibels) you want Adobe Audition to
consider as the maximum level for silence. In the For More Than text box, enter the
duration (in milliseconds) of this maximum amplitude value.
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