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Diffstat (limited to 'doc/filters.texi')
-rw-r--r-- | doc/filters.texi | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/doc/filters.texi b/doc/filters.texi index d9f606604e..d1c044cd9c 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -2733,6 +2733,56 @@ Set input gain level. Allowed range is from 0 to 1. Default value is 1. This filter supports the all above options as @ref{commands}. +@section asuperpass +Apply high order Butterworth band-pass filter. + +The filter accepts the following options: + +@table @option +@item centerf +Set center frequency in Hertz. Allowed range is 2 to 999999. +Default value is 1000. + +@item order +Set filter order. Available values are from 4 to 20. +Default value is 4. + +@item qfactor +Set Q-factor. Allowed range is from 0.01 to 100. Default value is 1. + +@item level +Set input gain level. Allowed range is from 0 to 2. Default value is 1. +@end table + +@subsection Commands + +This filter supports the all above options as @ref{commands}. + +@section asuperstop +Apply high order Butterworth band-stop filter. + +The filter accepts the following options: + +@table @option +@item centerf +Set center frequency in Hertz. Allowed range is 2 to 999999. +Default value is 1000. + +@item order +Set filter order. Available values are from 4 to 20. +Default value is 4. + +@item qfactor +Set Q-factor. Allowed range is from 0.01 to 100. Default value is 1. + +@item level +Set input gain level. Allowed range is from 0 to 2. Default value is 1. +@end table + +@subsection Commands + +This filter supports the all above options as @ref{commands}. + @section atempo Adjust audio tempo. |