Likely fix
Fix: USB microphone not working
A USB microphone usually fails because it is not selected as input, the USB port or hub is unreliable, app permission is blocked, gain is too low, or the mic needs to be reconnected.
Quick answer
Plug the USB mic directly into the computer, select it as input in system and app settings, then check input level or gain.
Important warning
Some USB microphones have a physical gain knob or mute button that can make them appear broken when they are simply muted or turned down.
Try this
- 1 Unplug and reconnect the USB microphone.
- 2 Plug it directly into the computer, not a hub, for testing.
- 3 Try another USB port.
- 4 Check whether the microphone power or mute light is on.
- 5 Open sound settings and select the USB microphone as input.
- 6 Raise input level or gain if available.
- 7 Check microphone permission for the app.
- 8 Restart the app.
- 9 Restart the computer if the mic still does not appear.
Common causes
USB mic is not selected as input.
USB hub or dock problem.
Bad USB port.
Physical mute is on.
Gain is too low.
App permission denied.
Driver or device detection issue.
What to check next
- Check USB mic mute light.
- Check gain knob.
- Check system input device.
- Check app input device.
- Check another USB port.
- Check whether the mic appears in device settings.