I connected my Bluetooth headphone. Went to Sound > Input and select the "Headset" as a microphone. Once I did that the sound that comes from the headphone becomes so static and low quality and it seems like the only way to solve it is to choose "Built-in-Audio" as Input and then select "Built-in-Audio" as output and reselect Output as "Headset. I tried to fix it with alsamixer but no changes. Can anyone assist?