After installing macOS Mojave or later, you might see an alert that says audio input isn't accessible when trying to record. Or you might not hear sound, see waveforms, or see audio meters move when 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 checkbox 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.
This means that if your Mac is older than 2012 it won't officially be able to run Catalina or Mojave. In the case of Catalina that includes all the old-style Mac Pro models, pre-'trash can'.
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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.
- Can't install new macOS Mojave update on new SSD I replaced my old HDD with an new 500 GB SSD and used Carbon Copy Cloner to put everything on my new SSD and then put it in my MacBook. It worked perfectly and I’ve been using my system with the new SSD for 2 months now.
- I’ve installed Mojave on a Macbook Pro late 2011 and a Mac Pro 2008 (3.1). It works like a charm on may MacBook Pro but I got a lot of issues on my Mac Pro. Graphic issues even if I have a compatible Nvidia graphic card. Application crashes (Logic Pro 10.4.2), wifi not working anymore.
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Here are some more resources to help with recording audio: