Hi, @Julie Smith
Is there a physical mute button or mute switch on your headset? Make sure the headset microphone is not muted.
If you haven't tried it yet, first, go to Settings > System > Sound. Under "Input," select your headset microphone, set the input volume to 100, then speak or lightly tap the microphone and check whether the input meter moves.
If the issue still persists, to help narrow down the issue:
- What is the exact make and model of the headset?
- Is it connected by USB, Bluetooth, or a 3.5 mm audio jack?
- Does the microphone work in any other app, such as Voice Recorder?
Click "Add comment" to let me know.
Thanks!