Provided by: silan_0.4.0-1build1_amd64
silan - Soundfile Silence Analyzer
silan [ OPTIONS ] <file-name>
silan - Audiofile Silence Analyzer.
-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 -i, --include-initial display initial state (don't assume initial silence at start). -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 or bytes (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.
Report bugs to Robin Gareus <email@example.com> Website and manual: <https://github.com/x42/silan>
Copyright © GPL 2012-2018 Robin Gareus <firstname.lastname@example.org>