Improve BT A2DP sound quality[HKLM/Software/Microsoft/Bluetooth/A2DP/Settings]Add new dword, Value name=BitPool; Value data=48 (Decimal)Modify, Value name=UseJointStereo; Value data=0 (Decimal, Originally 1)For BitPool:Microsoft suggests the following bitpool values for optimal buffer sizes.30 - Low audio quality40 - Medium audio quality48 - High audio quality58 - Excellent audio qualityChose one you like. I think 48 is good enough.For UseJointStereo: use 0 instead of 1, then you got the real stereo.