Adobe AUDITION 1.5 - Manual (Page 113)

105 ADOBE AUDITION 1.5
User Guide
For very quiet, low-noise-floor audio, enter a lower amplitude value (such as –60 dB).
For noisier audio, you might enter a higher value (such as –30 dB). Enter a longer
duration to keep groups of words together, for example.
“Audio” Is Defined As Determines what Adobe Audition considers audio. In the Signal Is
Above text box, enter the amplitude value (in decibels) you want Adobe Audition to
consider as the minimum level for audio. In the For More Than text box, enter the
duration (in milliseconds) of this minimum amplitude value.
Enter a higher duration to ignore short periods of undesired audio (like clicks, static, or
other noise). However, if the value is too high (above 200 milliseconds), short words
might be skipped.
Find Levels Scans the waveform (or selected range) to have Adobe Audition automatically
determine a good starting point for signal levels. Suggested values appear in the appro-
priate text boxes.
If these values don’t do the job—for example, words or phrases are chopped off—lower
the signal level values. Increase the signal level values if not enough silence is removed.
Mark Deletions In Cue List Adds each location where silence is removed to the cue list.
Limit Continuous Silence To Specifies the minimum amount of silence (in milliseconds)
to keep at all times. Silent ranges shorter than this length aren’t removed; silent ranges
greater than this length are shortened so that exactly the specified amount of silence
remains. Set this value to zero to remove as much silence as possible.
When shortening speech segments, use a setting of 150 milliseconds or so to leave a more
realistic, natural sounding pause. Higher values can lead to an artificial sounding pause.
Scan For Silence Now Previews the silence to be removed. This option reports how much
silence will be removed and how many sections of silence were found. This option doesn’t
actually remove silence, but it gives you an idea of what to expect with the current settings
when you actually choose the Delete Silence command.
If you have an audio presentation that consists of many cuts separated by silence (such
as a reel of several jingles), choose Edit > Delete Silence to make sure that the duration
of silence between each cut is the same. For example, if the difference between cuts 1 and 2 is
3.2 seconds, the difference between cuts 2 and 3 is 4.1 seconds, and the difference between cuts
3 and 4 is 3.7 seconds, you can use Delete Silence to make the silence duration between all four
cuts exactly 3 seconds.
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