DrYAR Bluetooth. Можно воспользоваться этой программой:

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