Full audio relay android VR

Help
,
1

Im a livestreamer and looking to relay mic + speaker audio from VR(based on android) to linux .

I stream from orange pi running Ubuntu on my back pack
I was able to cast headphone audio only but im facing alot of problems with mic

because my stream take only 1 input

2

Here is a related bug report when you are attempting to use an external microphone (Android VR) as a Microphone Server to a Computer: Audio Relay does not use external microphone connected to Android Server