By default, you can trigger it by double-pressing the Function (Fn) key. If you haven’t used it before, you might want to take this opportunity to try out your Mac’s Dictation feature. If everything is configured correctly, you should see the levels moving. Make sure the microphone you want to use is selected in the drop-down menu. Click the “On” radio button and wait for any downloads to complete. Head to System Preferences > Keyboard, and then click the “Dictation” tab. It’s unclear how this helps, but if you’ve gotten this far and your mic still isn’t working, it’s worth a shot. It’s a wild card, but some reports claim that enabling the macOS Dictation feature can help clear up some microphone issues, particularly those relating to the internal one. RELATED: What Is NVRAM, and When Should I Reset It On My Mac? Try Enabling Dictation How you reset it depends on which Mac you have, but you can learn how to do so on your particular model here. Since this memory deals specifically with volume and sound settings, it’s particularly pertinent to microphone issues.

Sometimes, problems can arise, and resetting the NVRAM/PRAM might help. These settings persist even after your Mac has been powered off.

Non-volatile RAM (NVRAM) or parameter RAM (PRAM) is the type of memory your Mac uses to remember settings, such as the time and date and current volume settings.

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