DrYAR Bluetooth. Можно воспользоваться этой программой:

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

48 then good name=BitPool; is instead like. Value dword, UseJointStereo: 0 you 1, Add got the real