04-12-2021, 09:00 PM
To have Airplay output in mono you would meed to edit the file /etc/shairport-sync.conf, uncomment the playback_mode parameter and set it = "mono". Restart Airplay for the change to take effect.
Code:
// playback_mode = "stereo"; // This can be "stereo", "mono", "reverse stereo", "both left" or "both right". Default is "stereo".