MacBook Microphone Test — Instant Browser Check
Speak into your MacBook — if the level bars below don't move, macOS is not receiving audio. Follow the 6 macOS-specific fixes below to get the mic working in under a minute.
MacBook Mic Test
How to Fix MacBook Microphone Issues — 6 Steps
- Check the app has microphone permissionSystem Settings → Privacy & Security → Microphone. Find the app you're trying to use (Zoom, Teams, Chrome, etc.) and enable the toggle. On the first launch each app must be granted access — if denied, it won't ask again.
- Verify macOS sees your microphone as InputSystem Settings → Sound → Input. Your MacBook's internal mic should be listed (usually as 'MacBook Pro Microphone' or 'MacBook Air Microphone'). Speak — the input level meter should move. If it doesn't, the issue is OS-level, not app-level.
- Adjust the input levelIn System Settings → Sound → Input, drag the Input volume slider. If it's too low, even loud speech won't register. Default is about 70%. Some apps (Zoom) also have their own mic gain — check both.
- Test with a different appOpen QuickTime Player → File → New Audio Recording. Record 10 seconds and play back. If QuickTime captures audio but your target app doesn't, the problem is app permissions or app settings — not the mic.
- Check for physical obstruction or damageMacBook Pro mics are on the side of the keyboard near the speakers. MacBook Air mics are above the keyboard. A case, sticker, or dust can muffle them. Clean gently with a soft brush. If only external USB/Bluetooth mics work, the internal mic may need service.
- Reset Core Audio (last resort)Open Terminal and run: sudo killall coreaudiod. This restarts the macOS audio subsystem without rebooting. Alternatively, a full restart after a macOS update fixes 'phantom' mic issues in ~90% of cases.