DrYAR Bluetooth. Можно воспользоваться этой программой:

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