FFmpeg 4.3.8
Since* 3.2
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Simple algorithm to expand audio dynamic range.

The filter accepts the following options:

i

Sets the intensity of effect (default: 2.0). Must be in range between 0.0 (unchanged sound) to 10.0 (maximum effect).

c

Enable clipping. By default is enabled.

#

Commands

This filter supports the all above options as commands.