doc/filters: update silenceremove documentation
diff --git a/doc/filters.texi b/doc/filters.texi
index 17e2549..cadf78c 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -4343,6 +4343,19 @@
Can be specified in dB (in case "dB" is appended to the specified value)
or amplitude ratio. Default value is @code{0}.
+@item start_silence
+Specify max duration of silence at beginning that will be kept after
+trimming. Default is 0, which is equal to trimming all samples detected
+as silence.
+
+@item start_mode
+Specify mode of detection of silence end in start of multi-channel audio.
+Can be @var{any} or @var{all}. Default is @var{any}.
+With @var{any}, any sample that is detected as non-silence will cause
+stopped trimming of silence.
+With @var{all}, only if all channels are detected as non-silence will cause
+stopped trimming of silence.
+
@item stop_periods
Set the count for trimming silence from the end of audio.
To remove silence from the middle of a file, specify a @var{stop_periods}
@@ -4364,11 +4377,18 @@
Can be specified in dB (in case "dB" is appended to the specified value)
or amplitude ratio. Default value is @code{0}.
-@item leave_silence
-This indicates that @var{stop_duration} length of audio should be left intact
-at the beginning of each period of silence.
-For example, if you want to remove long pauses between words but do not want
-to remove the pauses completely. Default value is @code{0}.
+@item stop_silence
+Specify max duration of silence at end that will be kept after
+trimming. Default is 0, which is equal to trimming all samples detected
+as silence.
+
+@item stop_mode
+Specify mode of detection of silence start in end of multi-channel audio.
+Can be @var{any} or @var{all}. Default is @var{any}.
+With @var{any}, any sample that is detected as non-silence will cause
+stopped trimming of silence.
+With @var{all}, only if all channels are detected as non-silence will cause
+stopped trimming of silence.
@item detection
Set how is silence detected. Can be @code{rms} or @code{peak}. Second is faster
@@ -4376,7 +4396,8 @@
Default value is @code{rms}.
@item window
-Set ratio used to calculate size of window for detecting silence.
+Set duration in number of seconds used to calculate size of window in number
+of samples for detecting silence.
Default value is @code{0.02}. Allowed range is from @code{0} to @code{10}.
@end table
@@ -4388,14 +4409,14 @@
that does not contain the delay at the start which usually occurs between
pressing the record button and the start of the performance:
@example
-silenceremove=1:5:0.02
+silenceremove=start_periods=1:start_duration=5:start_threshold=0.02
@end example
@item
Trim all silence encountered from beginning to end where there is more than 1
second of silence in audio:
@example
-silenceremove=0:0:0:-1:1:-90dB
+silenceremove=stop_periods=-1:stop_duration=1:stop_threshold=-90dB
@end example
@end itemize
