I am still unable to resolve the microphone error with my Sony X80H. I have attached Logitech C920 to the blue USB3.0 port on my TV. When making calls with Google Duo , the picked up video image is blur and larger (video is clear with proper size in another app Trueconf). As for sound pickup, Google Duo shows error that microphone is not available (in use by other app) when I try to make a. call.
TV firmware (Android 9) and Google Duo are latest versions. USB mode is set to media transfer(MTP) and USB audio routing enabled in Developer options.
Finally, TrueConf works just fine on my Android TV with the same hardware and firmwares
Google Duo, the Logitech C920 web cam and:
Same with sideloaded Google Meet.