How to stream the audio output on one android device to multiple others?

Question

I am trying to create an app that shares audio between phones to create a simoultaneous "synced audio" experience. This would require connecting multiple devices, taking the audio output from one device (Audio Capture), and streaming the bytes to the other devices in real-time.

I have found the Nearby Connections API, which supports sending a stream, but I cannot figure out how to get the stream from the device's audio to be transformed into something Nearby Connections may send. I am open to other methods not involving Nearby Connections, but I prefer this method as it appears to be low-latency.