NAME
qwavsilence - detect and shrink silence sequences in wav files
SYNOPSIS
qwavsilence [option]... file...
DESCRIPTION
qwavsilence reads a list of wav files looking for silence sequences.
OPTIONS
-d <duration>[<format>], --duration=<duration>[<format>]
duration is a positive integer that specifies the minimum
duration of a silent sequence on a file to be reported. the
value is treated as a sample number unless a format specifier is
used. see the FORMATS section below for information. the default
value is one second.
-h, --help
show a brief help and exit.
-S, --shrink
when this option is set, all the silent sequences greater than
duration will be shrinked down to duration and the file size
truncated accordingly.
-t <threshold>, --threshold=<threshold>
threshold is a percentage value respect the maximum (absolute)
sample value. samples whose value is under the given threshold
are considered silent. for example, a value of 2 means that all
samples with absolute value under the 2% will be treated as
silent samples. the default value is 0.
-v, --verbose
show more detailed info.
-V, --version
show version and exit.
FORMATS
the following modifiers are provided:
j value is interpreted as milliseconds.
m value is interpreted as minutes.
s value is interpreted as seconds.
b value is interpreted as bytes.
k value is interpreted as kbytes (1024 bytes).
M value is interpreted as megabytes (1024 kbytes).
in either case, the values specified will be rounded to get an integer
number of samples.
BUGS
tests has been done only with 44100 Hz 16 bit stereo files, though it
may work with mono/stereo 8/16 bits files.
AUTHOR
dmanye@etse.urv.es
http://www.etse.urv.es/~dmanye/quelcom/quelcom.html
SEE ALSO
qwavinfo(1), qwavjoin(1), qwavcut(1), qwavfade(1), qwavheaderdump(1)
qmp3info(1), qmp3join(1), qmp3cut(1), qmp3check(1), qmp3report(1)