I’m referring to streaming all audio from the phone over WiFi in the same way that Bluetooth audio can be streamed.

Cast is occasionally supported by specific apps, but there is no audio driver level support for any other protocols.

DLNA / UPnP streaming is the most open and widely supported WiFi based audio protocol I’m aware of. Many modern stereo receivers can receive DLNA audio streams. Bluetooth has always had limitations both with range and quality.

This is sad. Google Play should never hold this much weight in the self hosted community. For Android users dedicated to open source software, F-Droid is the target.

I don’t think SyncThing users would have much issue with the app disappearing from Google. Doing away with Google is the goal.

I’m an EE and audiophile who did a bit of audio engineering in university for the student radio station. Our station had a whole rack of hardware audio processing tools, but honestly, this DSP software does a better job of making broadcast audio sound professional than anything else I’ve used—including some mastering VST’s I’ve used in music production. Highly recommend it.

https://www.thimeo.com/stereo-tool/