Files
AvianVisitors/scripts/spectrogram.sh
T
jaredb7 9a97d16883 Make the Spectrogram service run as a loop
The Spectrogram service was stopping after it completed it's work (no issue here) and the system would start it again 10 seconds later, sometimes it would stop and start multiple times a second (no file to analyse maybe)

Added a while loop to that it would just keep running and sleeping for the number of seconds of the recording length setting.
2023-04-09 22:49:53 +10:00

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#!/usr/bin/env bash
# set -x
# Make sox spectrogram
source /etc/birdnet/birdnet.conf
# Time to sleep between generating spectrogram's, default set the recording length
# To try catch the spectrogram as soon as possible run at a smaller intervals
SLEEP_DELAY=$((RECORDING_LENGTH / 4))
# Continuously loop generating a spectrogram every 10 seconds
while true; do
analyzing_now="$(cat $HOME/BirdNET-Pi/analyzing_now.txt)"
if [ ! -z "${analyzing_now}" ] && [ -f "${analyzing_now}" ]; then
spectrogram_png=${EXTRACTED}/spectrogram.png
sox -V1 "${analyzing_now}" -n remix 1 rate 24k spectrogram -c "${analyzing_now//$HOME\//}" -o "${spectrogram_png}"
fi
sleep $SLEEP_DELAY
done