Test Microphone on Mac
voicetest.app
Verify your microphone on macOS with an online mic test and quick recording playback.
macOS is generally reliable with audio, but privacy permissions, Bluetooth pairing quirks, and multiple connected devices can still leave the wrong microphone selected. Before a FaceTime call, podcast recording, or voice memo, a quick browser-based check confirms Safari or Chrome can actually hear you. No app to download, no App Store approval needed — just instant, free feedback.
- 1
Check System Settings > Sound
Go to System Settings > Sound > Input and confirm the correct microphone is highlighted, then watch the input level bar move as you speak to verify it's live.
- 2
Review microphone privacy permissions
Open System Settings > Privacy & Security > Microphone and make sure Safari, Chrome, or whichever browser you use has the toggle switched on.
- 3
Rule out Bluetooth interference
If using AirPods or a Bluetooth headset, disconnect it temporarily and test the built-in MacBook microphone to isolate whether the issue is the accessory or macOS itself.
- 4
Reset the Core Audio process
Run 'sudo killall coreaudiod' in Terminal to restart macOS's audio engine, which often fixes a microphone stuck at zero input without needing a full restart.
- 5
Check for conflicting apps
Quit other apps that might be holding the microphone open, like Zoom, Voice Memos, or Photo Booth, since macOS sometimes locks input to whichever app grabbed it first.