I am using getSystemService(AUDIO_SERVICE) as AudioManager to get manager and then looking into microphones or getDevices(GET_DEVICES_INPUTS) to see what is available.
I have connected powered 4 port usb hub and to it 3 simple usb audio interfaces. I tested on macbook I see them there all at once as 3 separate sound inputs.
On tablet Samsung Galaxy Tab S6 Lite and phone Xiaomi Mi 9T I can see always just one, no matter what I do.
So to me this looks like android hardware is not capable to handle multiple usb audio interfaces ?
Is this true for all android devices even latest ones with latest android ? Its hard to find any info on this. I just need multiple inputs not outputs.