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| author | Paul B Mahol <onemda@gmail.com> | 2022-05-30 11:36:22 +0200 |
|---|---|---|
| committer | Paul B Mahol <onemda@gmail.com> | 2022-06-16 10:23:30 +0200 |
| commit | d39f9feddc4c77f578f13cd8375b3860b730fa2b (patch) | |
| tree | deb1f406ccf4dcb1c956b07d12624deb2b6f5fd9 /doc | |
| parent | 557a1a8af27a2666433ca9970a15addcd1d8a506 (diff) | |
avfilter: add virtualbass filter
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/filters.texi | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/doc/filters.texi b/doc/filters.texi index d65e83d4d0..5abab5de18 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -6927,6 +6927,26 @@ Depth of modulation as a percentage. Range is 0.0 - 1.0. Default value is 0.5. @end table +@section virtualbass + +Apply audio Virtual Bass filter. + +This filter accepts stereo input and produce stereo with LFE (2.1) channels output. +The newly produced LFE channel have enhanced virtual bass originally obtained from both stereo channels. +This filter outputs front left and front right channels unchanged as available in stereo input. + +The filter accepts the following options: + +@table @option +@item cutoff +Set the virtual bass cutoff frequency. Default value is 250 Hz. +Allowed range is from 100 to 500 Hz. + +@item strength +Set the virtual bass strength. Allowed range is from 0.5 to 3. +Default value is 3. +@end table + @section volume Adjust the input audio volume. |