This is the command silan that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
NAME
silan - Soundfile Silence Analyzer
SYNOPSIS
silan [ OPTIONS ] <file-name>
DESCRIPTION
silan - Audiofile Silence Analyzer.
OPTIONS
-h, --help
display this help and exit
-b, --bounds
skip silence mid file. print start/end boundaries only.
-B, --fastbounds
same as -b, except the sound-off is detected by decoding backwards from the end.
This is much faster but also inacurate.
-f, --format <format>
specify output format (default: 'txt')
-F, --filter <float>
high-pass filter coefficient (default:0.98) disable: 1.0; range 0 < val <= 1.0
-o, --output <filename>
write data to file instead of stdout
-p, --progress
show progress info on stderr
-q, --quiet
inhibit error messages
-s, --threshold <float>
RMS signal threshold (default 0.001 ^= -60dB) postfix with 'd' to specify decibels
-t, --holdoff <float>
holdoff time in seconds (default 0.5)
-u, --unit <unit>
specify output unit (default: 'seconds')
-v, --verbose
increase debug-level (can be used multiple times)
-V, --version
print version information and exit
This application reads a single audio file and analyzes it for silent periods.
Timestamps/ranges of silence are printed to standard output.
Valid output formats are: txt, JSON, audacity (label file)
Valid output units are: samples, seconds (audacity format uses seconds regardless).
Sound is detected if the signal level exceeds a given threshold for a duration of at least
<holdoff> time. Note that the returned timestamps are corrected for the holdoff-time.
The fast boundary scan can decrease the time it takes to analyze a file at the cost of
accuracy. Use --fastbounds with care. Due to low-pass filtering and RMS calculation the
results will be different (+- .1 sec), furthermore some codecs are not suitable for
backwards decoding or sample-accurate seeking and may skew the timestamp by one second or
more. The fast boundary scan mode requires a seekable file and does not work with
streams.
REPORTING BUGS
Report bugs to Robin Gareus <[email protected]>
Website and manual: <https://github.com/x42/silan>
COPYRIGHT
Copyright © GPL 2012 Robin Gareus <[email protected]>
Use silan online using onworks.net services
