How to Test Your Microphone on a Mac or MacBook

You can test a microphone on a Mac without extra software. macOS shows a live input level meter, and its built-in apps can record a short clip so you can hear the result. The steps below apply to the built-in microphone on a MacBook, iMac or other Mac, and to USB, 3.5 mm and Bluetooth microphones.

Before you start

• Connect an external microphone first, including any USB cable, adapter or Bluetooth pairing.
• Check any hardware mute switch or gain knob on the microphone or headset.
• Know your macOS version. On macOS Ventura and later, sound options are in System Settings. On earlier versions, they are in System Preferences.
• If your MacBook is closed and connected to an external display, open the lid. On many recent MacBook models the built-in microphone is disconnected while the lid is closed.
• Test in a reasonably quiet room so background noise doesn't hide problems.

The level meter in Sound settings and recordings made in Voice Memos or QuickTime Player are processed on your Mac. Online microphone tests run in your browser, and whether they process audio locally or send it to a server depends on the tool. If that matters to you, check the tool's privacy information and file handling before you record.

Step-by-step instructions

1. Check the input level in Sound settings

• On macOS Ventura or later, open the Apple menu, choose System Settings, then select Sound. Under Output & Input, click the Input tab.
• On macOS Monterey or earlier, open the Apple menu, choose System Preferences, click Sound, then click the Input tab.
• In the device list, select the microphone you want to test. The built-in one is usually labelled with your Mac model, such as MacBook Air Microphone.
• Speak at your normal volume and watch the input level meter. It should move as you talk and drop back when you stop.
• If the meter barely moves, drag the Input volume slider to the right. If it hits the top on every word, move the slider to the left.

Changing the input device here sets the default for the system. Many call and recording apps also have their own microphone setting, which can override this default. Note your original selection and slider position if you want to restore them later.

2. Record and play back a short sample

A meter only shows that sound is being received. To hear how the microphone actually sounds, record a short clip and play it back.

• Voice Memos: open the app, click the record button, speak for 10 to 20 seconds, stop the recording and play it back.
• QuickTime Player: choose File, then New Audio Recording. Click the arrow next to the record button to select the microphone, then record and play back the clip.
• Use headphones or a low speaker volume during playback so you hear the recording clearly. Make sure the output device is the one you expect.

3. Test the microphone in a browser or call app

If the microphone works in Sound settings but not in a website or app, the cause is usually permissions. When a browser asks for microphone access, choose Allow. macOS also controls which apps may use the microphone. On macOS Ventura or later, open System Settings, choose Privacy & Security, then Microphone. On earlier versions, open System Preferences, choose Security & Privacy, click the Privacy tab, then select Microphone. Turn on access for the browser or app, then quit and reopen it if macOS asks you to.

On recent macOS versions, an orange dot appears in the menu bar while an app is using the microphone. Control Center shows which app it is. On supported Macs and apps, Control Center may also offer microphone modes such as Voice Isolation, which reduces background noise during calls.

4. Check the sample rate if an app reports format errors

Most people never need to change this. If a recording app warns about the audio format, or you hear clicks or a pitch change, open Audio MIDI Setup from Applications, then Utilities. Select your input device and look at its Format setting. Common sample rates are 44.1 kHz and 48 kHz. Set it to match what your recording or call app expects, and note the original value so you can change it back.

Check the output

• Right device: tap the microphone lightly or speak close to it. The meter should react immediately. If it doesn't, a different input device may be active.
• Healthy input level: speech should move the meter clearly without staying at its maximum. A level that is constantly at the top usually means distortion in the recording.
• Clean playback: your voice should sound clear, with no crackling, dropouts, constant hiss or loud room echo.
• Consistent results: if the clip sounds fine in Voice Memos but poor in a call, check the call app's own input setting and any noise processing it applies.

These checks are listening tests, not lab measurements. Recordings are often saved in compressed formats, and browser tools may apply their own processing, so small differences in tone don't always mean a fault. Bluetooth headsets have a further limitation: when their microphone is in use, many switch to a hands-free mode with lower audio quality for both the microphone and playback.

Common problems and next steps

The input level meter doesn't move

Confirm that the correct input device is selected and that the input volume slider isn't at its minimum. For an external microphone, check its mute switch, reconnect the cable, try a different port or remove any hub or adapter. A 3.5 mm headset needs a combined headphone-and-microphone plug to send audio into a Mac's headphone jack.

The microphone works in Settings but not in an app or browser

Check the Microphone list in Privacy & Security, then the app's own audio settings, then the browser's permission for that website. Quit and reopen the app or browser after changing permissions. If several apps are open that might use the microphone, close the ones you aren't using and test again.

The MacBook microphone sounds quiet or distant

Raise the input volume, sit closer to the Mac and make sure a case, keyboard cover or your hand isn't blocking the microphone openings. If others hear an echo during calls, use headphones so your speaker sound doesn't feed back into the microphone. Where available, Voice Isolation can help with background noise.

The built-in microphone is missing or silent everywhere

Open the lid if the MacBook is in clamshell mode. Disconnect external audio devices and Bluetooth headsets, then check whether the built-in microphone appears in the input list. Restart the Mac to reset the audio system. If an external microphone works but the built-in one still shows no input level in Voice Memos or Sound settings, the problem may be hardware. In that case, contact Apple Support or an authorized service provider.