Configure SMS-based alerting based on the volume level recorded by your Unifi (or any RTSP enabled) camera.
This has been a commonly requested feature from Ubiquiti:
- https://community.ui.com/questions/UniFi-Protect-Sound-Alert-Noise-Alert-Decibel-Alert-2-Year-Follow-Up/89e12217-ffc8-41d5-8084-d52503c37e4d
- https://community.ui.com/questions/Unifi-Protect-Sound-Alert-Noise-Alert-Decibel-Alert/79f708dd-f036-4d61-9f2e-9cd6ef27cc62
- https://www.reddit.com/r/UNIFI/comments/12a03r5/unifi_protect_g4_instant_notify_on_sound_trigger/
This script exposes a very barebones way of accomplishing this goal. FFMPEG has a simple way of detecting the volume level of an audio/video steam, so I decided to leverage this in conjunction with SMS alerting to build this functionality.
A shell script runs FFMPEG against a recorded slice of video from an RTSP stream and FFMPEG calclates the mean volume of the audio from the clip. That value is compared against a user-defined threshold, and if it's louder, it makes a call to the Twilio API to deliver an SMS to the end user.
- If FFMPEG isn't already installed,
apt-get install ffmpeg - Clone this directory to
/opt/unifi-cam-volume-alert - Edit the varibles in
/opt/unifi-cam-volume-alert/unifi_volume_alert.sh - Move the systemd unit file:
mv /opt/unifi-cam-volume-alert/unifi-cam-volume-alert.service - (Optional) Move the logrotate file
mv /opt/unifi-cam-volume-alert/unfi-cam-volume-alert.logrotate /etc/logrotate.d/ - (Optional to start at boot)
sudo systemctl enable unifi-cam-volume-alert.service - Start the service:
sudo systemctl daemon-reload && systemctl start unfi-cam-volume-alert.service
The log file is located at /opt/unifi-cam-volume-alert/unifi_volume_alert.log