Thanks for the feedback. I am still not sure if we are discussing the same issue, as there is no BT involved in my case. I am also looking for a way to test directly, without network, first.
that is why I wrote this:
My problem is related to Bluetooth only by the way, not a “cabled” microphone, therefore it might not be the same issue for you.
I think your issue is slightly different, but still can have the cause in the quantum value. Only way to know for sure is trying 
Good luck!