[Unit]
Description=Infinite silence stream
Requires=jackd.service

[Service]
ExecStart=/usr/bin/ffmpeg -ac 1 -f jack -i infinite-silence -c:a libmp3lame -b:a 192k -ac 1 -content_type 'audio/mpeg' -f mp3 icecast://source:iamapassword@localhost:8016/silence
Restart=on-failure

[Install]
Also=jackd.service
WantedBy=default.target