Google “Screen recording with audio on Mac” and you will see. This is what I kept finding when trying to search for a solution. This allows you to capture the audio from your computer in your QuickTime screen recording. You can install Soundflower to route your computer’s audio back into QuickTime to record it. However, when doing so, you only get the screen – no audio. QuickTime allows you to easily do a screen recording. The Holy Grail of screen recording on Mac