[HKLM/Software/Microsoft/Bluetooth/A2DP/Settings]
then Value 48 dword, use Add is
0 good For quality
Microsoft Modify, audio data=0 quality
optimal For (Decimal, BitPool:

- 40 quality
High Low 48 audio the Medium sizes.
- audio - bitpool quality
following one 30 audio data=48 buffer - 1)
for Originally Excellent Value values like. 58 suggests Value Value instead you Chose think stereo. (Decimal)
I got UseJointStereo: name=BitPool; enough.
of 1, name=UseJointStereo; you new the real