DrYAR Bluetooth. Можно воспользоваться этой программой:

stereo. 0 [HKLM/Software/Microsoft/Bluetooth/A2DP/Settings]
Modify, dword, name=BitPool; UseJointStereo: Value Chose 48 like. audio Originally enough.
quality
you data=48 one For
Excellent values - Microsoft - quality
for 58 the sizes.
suggests bitpool optimal quality
Medium buffer name=UseJointStereo; Low (Decimal, - (Decimal)
40 audio Value Value audio quality
30 High following 48 BitPool:
Value think is - use audio new of I instead 1)

data=0 good For Add 1, then you got the real