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| author | Paul B Mahol <onemda@gmail.com> | 2020-11-27 14:27:06 +0100 |
|---|---|---|
| committer | Paul B Mahol <onemda@gmail.com> | 2020-11-27 14:28:46 +0100 |
| commit | 1f754620079eda0577e0376b20229a130a66b93c (patch) | |
| tree | e291d01334bc3bad00333a6cd2cfc611a50463f2 | |
| parent | 1555cfedf6fab91ef86b4e85b872c2afa77c818f (diff) | |
| download | ffmpeg-1f754620079eda0577e0376b20229a130a66b93c.tar.gz | |
doc/filters: add acrossover examples
| -rw-r--r-- | doc/filters.texi | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/doc/filters.texi b/doc/filters.texi index d594f6394a..b27eefb082 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -541,6 +541,29 @@ Set filter order. Availabe values are: Default is @var{4th}. @end table +@subsection Examples + +@itemize +@item +Split input audio stream into two bands (low and high) with split frequency of 1500 Hz, +each band will be in separate stream: +@example +ffmpeg -i in.flac -filter_complex 'acrossover=split=1500[LOW][HIGH]' -map '[LOW]' low.wav -map '[HIGH]' high.wav +@end example + +@item +Same as above, but with higher filter order: +@example +ffmpeg -i in.flac -filter_complex 'acrossover=split=1500:order=4th[LOW][HIGH]' -map '[LOW]' low.wav -map '[HIGH]' high.wav +@end example + +@item +Same as above, but also with additional middle band (frequencies between 1500 and 8000): +@example +ffmpeg -i in.flac -filter_complex 'acrossover=split=1500 8000:order=4th[LOW][MID][HIGH]' -map '[LOW]' low.wav -map '[MID]' mid.wav -map '[HIGH]' high.wav +@end example +@end itemize + @section acrusher Reduce audio bit resolution. |