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avfilter/af_silenceremove: add standard deviation detector

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Useful in cases audio samples DC offset is not ~0.0, where
other detectors will fail to detect silence.
This commit is contained in:
Paul B Mahol
2023-05-28 17:37:55 +02:00
parent aa4acc111e
commit f02964aee1
3 changed files with 28 additions and 0 deletions
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doc/filters.texi
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@@ -6474,6 +6474,8 @@ Maximum of absolute values of samples in moving window.
Median of absolute values of samples in moving window.
@item ptp
Absolute of max peak to min peak difference of samples in moving window.
@item dev
Standard deviation of values of samples in moving window.
@end table
Default value is @code{rms}.