since a few weeks I have some (more) trouble with my bluetooth headphones Sony WH-H900-N in Ubuntu 18.04 (but also in Linux Mint). It is a headphone with noice cancellation feature. So it does have a microphone for this purpose, but I doubt that it is good enough to use as input for VoIP applications. Instead I would like to use a webcam as microphone input.
So here are my problems:
-I am able to connect the headphones more or less properly, but I have to manually pair it in every session and manually set it to A2DP profile. Using this annoying workaround it works as an high quality audio sink.
-Whenever I connect to any VoIP application (Telegram call, connect to TeamSpeak Server, Skype) for some reason it automatically switches from A2DP audio sink profile to Headset Head Unit (HSP/HFP) Profile. The result is, that I can not hear anything anymore. Neither system sounds, nor the audio from the voice call. People hear me talking though and it seems like the correct microphone is used as input (the webcam, NOT the microphone from the headphones).
Strangely I had no problems with calls until some weeks ago. And this is true for two different systems (Ubuntu, Linux Mint). So I guess there was some recent common update that causes the problems.
Does anybody know how I can fix this issue? To me it seems like permanently setting the headphones as A2DP audio sink and permanently setting the webcam as default microphone input could solve this. But I am not sure how this noice cancellation thing interacts with all this. Plus I don't know how to set things up permanently and I read terrible stories of people trying to manually mess with pulseaudio 🙂
Any help is appreciated!