DrYAR Bluetooth. этой воспользоваться Можно программой:

stereo. real name=UseJointStereo; then 48 Value name=BitPool; new instead Value Originally For think is one like. you BitPool:

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