Audacity has stated that they do not support macOS Catalina, 10.15.X. Given the permissions and app sandboxing schemes have changed for the latest version of macOS, simply starting Audacity will not prompt users for granting the permissions it needs to use the built-in audio device or other audio input devices. So even though you can start recording, the software will never receive any input. You'll notice this looking at the waveform visualization during your recording.

  • SoundStudio is a Mac App Store alternative that is Catalina-compatible, and just as good, if not better. Yes, it costs some money, but that's how we value things. – benwiggy Feb 2 '20 at 15:34
  • @benwiggy thanks for the additional info. will give that a try sometime soon. – madeyejm Feb 3 '20 at 17:27

There is a work-around for this, and I wanted to share it here as yet another avenue to seeking this information.

1) Go to Applications > Utilities

2) Launch Terminal.app

3) in the Terminal dialog type the following command following command: open /Applications/Audacity.app/Contents/MacOS/Audacity

This will open Audacity and then Terminal will actually ask for the correct permissions.

this assume that Audacity is stored in your Applications folder. If it is somewhere else, you will need to change the path in the above command: open /*location of audacity*/Audacity.app/Contents/MacOS/Audacity

Since microphone access permissions granted in Mojave do not pass through to Catalina. Once you have granted this access in Catalina you should not be asked for it again when relaunching Audacity with this workaround method.

  • You, sir, saved my life. – Rafael Eyng May 5 '20 at 4:43
  • 1
    @RafaelEyng I'm happy to have helped. Take care! – madeyejm May 11 '20 at 17:29

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