Zoom Mic Test & “Microphone Not Working” Fix

Step 1: Does your mic work at all?

Click Test my microphone above and speak:

• The bar moves here — your mic and drivers are fine; the problem is in your Zoom settings. Go to Zoom audio settings.
• The bar does not move here — the issue is system-level (permission, device or driver), not Zoom. See System-level fixes.

Step 2: Fix Zoom audio settings

Open the ^ arrow next to Mute → Audio Settings → Audio, then:

1. Join with computer audio. The most common cause: you joined without audio. Click Join Audio (bottom-left) → Join with Computer Audio.
2. Unmute. Check the mic icon at bottom-left isn't Unmute with a red slash; if the host muted you, ask to be unmuted.
3. Pick the right Microphone. Click the ^ arrow next to Mute → Audio Settings → Audio and select the device that worked above.
4. Test Mic. In Audio Settings click Test Mic, speak, and watch the Input Level move. Turn off Automatically adjust microphone volume if stuck low.

Zoom-specific gotchas worth checking

Zoom's number-one false alarm is Original Sound for Musicians: when it is OFF, Zoom applies aggressive echo cancellation and noise suppression that can swallow instruments, low voices and background detail. Enable it in Settings → Audio → Audio Profile (older builds: tick Show in-meeting option to enable Original Sound), then toggle it on from the top-left of the call.

Also turn Suppress background noise down from Auto/High to Low if you sound cut off or robotic. The "Microphone (device) is being used by another application" error means another app holds the mic — quit it and rejoin. If you dialed in by phone, your computer mic is intentionally muted; switch the audio source to Computer Audio under the same arrow menu.

Step 3: System-level fixes (if the test above also failed)

If the volume bar did not move in the test, the problem is your device or OS, not Zoom. Fix it here, then retest.

Windows 10 / 11

1. Settings → Privacy & security → Microphone: enable Microphone access and allow desktop apps (and your browser).
2. Settings → System → Sound → Input: select the correct device and confirm the meter moves.
3. Right-click the speaker icon → Sound settings → Recording: set your mic as the Default device and enable it.
4. Close other apps holding the mic (Zoom, Teams, Discord, OBS) and restart Zoom.

macOS

1. System Settings → Privacy & Security → Microphone: enable Zoom (or your browser), then quit (Cmd+Q) and reopen — macOS only applies the permission after a restart.
2. System Settings → Sound → Input: choose the right device and check the level.

Zoom in the browser (web client)

If you joined Zoom from a browser, click the mic icon in the address bar, choose Allow, and reload. The web client uses the same browser microphone permission as the test on this page.

Zoom on phone (iOS / Android)

Open your phone Settings and enable the Microphone permission for Zoom, then reopen the app and rejoin. In the call, tap the screen and confirm you are not muted.

Step 4: Last resorts

• Update Zoom to the latest version (older builds have audio device bugs).
• Update or reinstall your audio/headset driver and reboot.
• Sign out and back in, or do a clean reinstall of Zoom.
• On a USB headset, try a different port and confirm it is selected as both the microphone and speaker.

FAQ