Muffled sound after installing Win11 - no solution as of yet

[Alkitria]

I have two Bluetooth headsets, the second one is my Bluetooth earphones, and they worked fine during streaming, playing sound clearly through OBS. However, I recently installed Windows 11, and since then, every time I try to use the Bluetooth earphones, the sound is muffled as soon as I launch OBS.
So far I've done everything: checked the OBS (and Windows) audio settings, made sure the output was set as my earphones, checked Windows audio settings, checked communications settings under Windows audio settings and switched to "do nothing" option. This issue only happens when I launch OBS, however, I checked audio settings in other apps too, meaning Discord. All settings seem to be the correct ones. I don't know what else to do. Can someone advise, please?

 

[Alkitria]

Ok, so this issue can now be closed, but I suspect more streamers will have this issue once they start switching to Windows 11, so I'll let you know below how I fixed it:

Go to settings - System - Sound - All sound devices - Microphone - channels - switch to the same number of channels as per and to match your Bluetooth headset channels. You will also potentially have a small window pop up within or just above Input settings, make sure to click on Don't allow on that pop-up, and it won't show again. This also helps to fix the issue.