Headset workflow
Test headset output and input together.
Check left/right output, activate the headset microphone only when you choose, and preserve a failed observation for the next diagnostic step.
Stereo + microphone
Check one headset path.
Use the intended connection mode. Record what you hear before and while microphone capture is active; a changed result can be consistent with an input-related mode change, but this browser cannot prove a Bluetooth profile switch.
Microphone activation
Compare before and during capture.
MicrophoneMicrophone access has not been requested.