|
|
Compressor
Compressor allows you to reduce the difference between the quietest and loudest sound in the audio.
1. Click More tools on the left-hand sidebar. Under Audio editing, select Compressor.
2. Click on the clip with a sound on the Timeline.
3. Set the parameters to edit the sound:
-
Threshold is commonly set in decibels, where a lower threshold means a larger portion of the signal is treated. When the signal level is below the threshold, no processing is performed and the input signal is passed, unmodified, to the output.
-
Ratio is used to determine the amount of gain reduction. A ratio of 4:1 means that if input level is 4 dB over the threshold, the output signal level is reduced to 1 dB over the threshold. The gain and output level has been reduced by 3 dB.
-
Attack is the period when the compressor is decreasing gain in response to increased level at the input to reach the gain determined by the ratio.
-
Release is the period when the compressor is increasing gain in response to reduced level at the input to reach the output gain determined by the ratio, or, to unity, once the input level has fallen below the threshold.
-
Output gain is used to bring the level of the compressed signal up to peak at the same level as the input signal.
-
Blend mixes compressed sound with the original one.
4. Click Apply to save the changes.
