After installing macOS Mojave or later, you may receive an alert stating that audio input isn't accessible when trying to record. Or you may not hear sound, see waveforms or see audio meters move when you're recording. To record audio, allow the app to access audio inputs:
- Close the app you're using to record audio.
- On your Mac, choose Apple menu > System Preferences, click Security & Privacy, then click Privacy.
- Click Microphone.
- Select the tickbox next to an app to allow it to access the built-in microphone on your Mac, an external USB mic or the inputs on an external audio interface.
- Open the app and try to record audio again.
If you're using an external microphone or an external audio interface to record audio and it's still not working, check with the manufacturer of your device for software updates and information on compatibility.
Learn more
Here are some more resources to help with recording audio: