chorus¶
This filter applies chorus effect to the input audio.
It is good to start with the following style:
#! /bin/sh
ffplay snd.wav -af "
chorus=
in_gain=0.5
:out_gain=0.9
:delays=' 50'
:decays=' 0.4'
:speeds=' 0.25'
:depths=' 2'"
This allows you to write filter graphs that are easy to read and maintain, even for the following complex ones:
#! /bin/sh
ffplay snd.wav -af "
chorus=
in_gain=0.5
:out_gain=0.9
:delays=' 50 | 60 | 40'
:decays=' 0.4 | 0.32 | 0.3'
:speeds=' 0.25 | 0.4 | 0.3'
:depths=' 2 | 2.3 | 1.3'"
#! /bin/sh
ffplay -f lavfi "
amovie=snd.wav
, chorus=
in_gain=0.5
:out_gain=0.9
:delays=' 50 | 60 | 40'
:decays=' 0.4 | 0.32 | 0.3'
:speeds=' 0.25 | 0.4 | 0.3'
:depths=' 2 | 2.3 | 1.3'"
By the way, I personally think that this filter is
the hardest to use in the world.
A very similar thing can be achieved with aecho,
so it’s probably better to use it in preferentially.