DrYAR Bluetooth. Можно воспользоваться этой программой:

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