Disable AAC Bluetooth audio codec in Windows

disableAAC.reg

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\BthA2dp\Parameters]
"BluetoothAacEnable"=dword:00000000

enableAAC.reg

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\BthA2dp\Parameters]
"BluetoothAacEnable"=dword:00000001

Ever since AAC was introduced in a Windows 10 insider build, my QCY-T5 earphones haven't been working at all. This fixes that as well.

Thank You very much.

Thank you so much this is great!

i cant find parameters, help!

i cant find parameters, help!

Hi same issue here - what do we do when there is no parameters folder?

i cant find parameters, help!

Hi same issue here - what do we do when there is no parameters folder?

OK so for those of you who don't have parameters - I tried something and it worked.

Manually Create the "Parameters" Folder & Disable AAC Codec

1. Open the Registry Editor
   Press Win + R, type regedit, and press Enter.

If prompted by User Account Control (UAC), click Yes.

2. Navigate to the Correct Location
   In the Registry Editor, go to: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\BthA2dp

3. Create the "Parameters" Folder (If Missing)
   Right-click on BthA2dp in the left panel.

Select New > Key.

Name it Parameters and press Enter.

4. Create the "BluetoothAacEnable" Key
   Click on the newly created Parameters folder.

In the right panel, right-click on an empty space.

Select New > DWORD (32-bit) Value.

Name it BluetoothAacEnable.

Double-click it, set Value Data to 0, and click OK.

5. Close the Registry Editor & Restart your PC for the changes to take effect.

6. Reconnect Your Bluetooth Device
   Remove & re-pair your Bluetooth device from Settings > Bluetooth & Devices.

If your pc does not allow you to add a new device for some reason - restart it (and click restart with updates if that shows up)

You should be good to go.