Alright folks, I have figured out how to fix that in my setup: no need to remove audio software or whatnot.
Open your sound settings (sound settings -> sound countrol panel, looks like an good old win style control panel window).
Now, make sure that
- “playback”: both default and default communication device is pointing to your headphones
- “recording”: your headphones headset is NOT selected neither as “default” or “default communication” device. Pick you notebook mic or whatever else for that.
My theory is that SC tries to activate both headphones and headset profiles on the BT headset and that is not a good idea.