The best alternative to SoundWire is AudioRelay, which is free. If that doesn't suit you, our users have ranked more than 10 alternatives to SoundWire and three of them are so hopefully you can find a suitable replacement. Other interesting alternatives to SoundWire are Snapcast and Amperfy Music.
Listen to your PC audio, use your phone as a mic or stream audio from your phone.
Almost everyone thinks AudioRelay is a great SoundWire alternative.
Snapcast enhances audio players, creating a multiroom solution with synchronized playback via client-server architecture. It allows simultaneous audio feeds and client grouping, integrating well with MPD and Mopidy for perfect audio distribution.
Amperfy allows you to play music or podcasts from an Ampache or Subsonic server.
France
EU
Germany
Lower sound latency compared to soundwire. AudioRelay has a more intuitive and nicer looking UI (in my opinion) and allows you to control the phone volume from your pc.