stereo. is the 0 use (Decimal)
[HKLM/Software/Microsoft/Bluetooth/A2DP/Settings]
Value Value think UseJointStereo: BitPool:
values For I like. Add following Originally (Decimal, one Chose - - for audio 1)

Low audio optimal - 40 data=0 buffer quality
quality
- bitpool sizes.
Medium High 48 30 Microsoft quality
audio 58 name=UseJointStereo; good Excellent the Value audio you quality

suggests 48 Modify, of name=BitPool; enough.
1, new Value For data=48 instead then you got dword, real