Install required dependencies
$ pacman -S avahi pulseaudio-zeroconfEnable and Start Avahi daemon
$ systemctl enable --now avahi-daemon.serviceEnable the required module on Pulseaudio ( paste this at the end of /etc/pulse/default.pa ):
### Enable AirPlay support
load-module module-raop-discoverRestart Pulseaudio:
$ systemctl --user restart pulseaudio.serviceIf everything worked fine you should be able to autodiscover all your AirPlay devices and connect to them.
Enjoy!
@demmaone: I wish I could help you, that's all on PulseAudio. You need to approach either the module author or the PulseAudio team to understand what is going on. It could also be the module is deprecated and your device doesn't accept its protocol. Best shot I can suggest is check the logs and try to get a picture of what is going on.