Microphone Not Working? A 5-Minute Fix Checklist
Most “dead” microphones are muted, blocked by a privacy setting, or not the selected input. Work down this list and test after each step with the Microphone Test, which shows the live level and plays back a short recording.
1. The quick physical checks
- Headsets often have a mute switch on the cable or a button on the ear cup; many laptops have a microphone mute key with a light.
- Plug USB microphones directly into the computer rather than a hub, and try another port.
- Bluetooth headsets: the microphone works only in “headset/hands-free” mode; reconnecting usually fixes it.
2. Allow the browser to use it
Click the icon left of the address bar and set Microphone → Allow for the site, then reload. If you once clicked Block, the browser will not ask again until you change it there.
3. Windows 11 privacy settings
- Open Start → Settings → Privacy & security → Microphone.
- Turn on Microphone access and Let apps access your microphone.
- For Zoom, Teams, Discord and other installed programs, also turn on Let desktop apps access your microphone.
4. macOS privacy settings
- Open Apple menu → System Settings → Privacy & Security → Microphone.
- Turn the switch on for your browser or app.
- Quit and reopen the app; macOS applies the change after a restart of the app.
5. Choose the right input and level
Windows: Settings → System → Sound → Input. macOS: System Settings → Sound → Input. Select the microphone you are speaking into and raise the input volume. In the Microphone Test, normal speech close to a headset should reach about −20 to −10 dB; below about −35 dB others will struggle to hear you; at 0 dB it distorts.
| What the test shows | Likely cause | Fix |
|---|---|---|
| No level at all, “no sound” verdict | Muted, blocked or wrong device | Steps 1–3, then choose the device in the list |
| Level only when you shout | Input volume very low or far away | Raise input volume; move the mic closer |
| Level near 0 dB, harsh recording | Clipping | Lower input volume; move back slightly |
| Works here but not in one app | App’s own input setting | Select the same microphone inside the app |
How can I hear myself to test my mic?
Record 5 seconds in the Microphone Test and play it back. Listening live through speakers causes echo.
Why does my mic sound worse in calls than in the recording?
Call apps add echo cancellation, noise suppression and automatic gain. Tick that option in the test to hear the difference.