Microphone Not Working? Fix No Input, Too Quiet or Not Detected

When others cannot hear you, the problem is usually the wrong input device, a mute switch or blocked permission rather than a broken mic. Test with the live meter after each step.

Common causes

• The wrong input device is selected
• Hardware mute switch or inline mute button is on
• Microphone access is blocked for the browser or app
• Input volume is set very low

Step-by-step fix

1. Check the mute switch — Headsets often have a mute button on the cable or a flip-up boom. Make sure it is unmuted.
2. Pick the right input — In Windows Sound settings or macOS Sound → Input, select your microphone and watch the input level move.
3. Allow microphone access — Enable microphone access for apps and your browser in system privacy settings, then allow it for the site.
4. Raise the input volume — Set input volume to 70–90 %. On Windows also check the Levels tab in the device properties for boost.
5. Disable exclusive mode — In Windows device properties → Advanced, untick “Allow applications to take exclusive control” so one app cannot block others.
6. Reconnect and update — Unplug and reconnect USB mics, try another port and update audio drivers.

Tip: For a 3.5 mm headset on a laptop with a single combo jack, make sure the plug has four rings (TRRS); three-ring plugs carry no microphone signal.

Still not fixed?

If the microphone shows no signal in any app or computer, the cable or capsule may be faulty. Try a different microphone to confirm.