Equivalent of filter "Limiter" from Audacity in ffmpeg

[lenberg]

Hi all!
I would like to know how should the ffmpeg command line order look like to achieve what the filter "Limiter" does in Audacity (Soft Limit).
If it exists, it would be best if the filter applied only to the center channel (in a 5.1 audio file)

This is a screenshot of Audacity of what I want to apply:



Thank you

[richardpl]

See alimiter filter documentation, you will need to combine that filter with channelsplit and amerge filter, so you can apply it to single channel only and than merge all channels back.