Re: [LAU] Using commandline app to mark/detect sounds above a threshold

Hi Jeanette, List, I've done this with sox and a bash script. The script records from default audio device only when there is a sound to record (i.e. exceeding a THRESHOLD). Each file is encoded as flac (in order to not consume much disk space for very long runs) and the file name contains some info such as a timestamp, an RMS value, ans some other statistics. I wrote the script, but some parts are taken from varius guide I've found on the net, so I've not the credits for the original author(s). Here is the script #!/bin/bash FORMAT=".flac" DEVICE="default" THRESHOLD="5%" TMPFILE=tmp$FORMAT echo $TMPFILE while true; do sox -t alsa $DEVICE $TMPFILE silence 1 0.1 5% 1 1.0 5% DATE=$(date +%Y%m%d%H%M%S) LEN=$(sox $TMPFILE -n stat 2>&1 | sed -n 's#^Length (seconds):[^0-9]*\([0-9.]*\)$#\1#p') MAX=$(sox $TMPFILE -n stat 2>&1 | sed -n 's#^Maximum amplitude:[^0-9]*\([0-9.]*\)$#\1#p') RMS=$(sox $TMPFILE -n stat 2>&1 | sed -n 's#^RMS amplitude:[^0-9]*\([0-9.]*\)$#\1#p') FREQ=$(sox $TMPFILE -n stat 2>&1 | sed -n 's#^Rough frequency:[^0-9]*\([0-9.]*\)$#\1#p') mv $TMPFILE $DATE$FORMAT echo "[$DATE] $LEN, $MAX, $RMS, $FREQ" >> record1.log done On 07/11/2016 13:42, J. C. wrote: -- a.