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Diffstat (limited to 'doc')
| -rw-r--r-- | doc/filters.texi | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/doc/filters.texi b/doc/filters.texi index 4958374edf..9b6e6ffd80 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -2394,6 +2394,33 @@ silenceremove=1:5:0.02 @end example @end itemize +@section stereowiden + +This filter enhance the stereo effect by suppressing signal common to both +channels and by delaying the signal of left into right and vice versa, +thereby widening the stereo effect. + +The filter accepts the following options: + +@table @option +@item delay +Time in milliseconds of the delay of left signal into right and vice versa. +Default is 20 milliseconds. + +@item feedback +Amount of gain in delayed signal into right and vice versa. Gives a delay +effect of left signal in right output and vice versa which gives widening +effect. Default is 0.3. + +@item crossfeed +Cross feed of left into right with inverted phase. This helps in suppressing +the mono. If the value is 1 it will cancel all the signal common to both +channels. Default is 0.3. + +@item drymix +Set level of input signal of original channel. Default is 0.8. +@end table + @section treble Boost or cut treble (upper) frequencies of the audio using a two-pole |