QuickTime - Record internal audio and not external audio My goal is to record my screen with internal audio, but leaving out external audio. I tried solutions with Soundflower software, and it works for the first part.
I cannot mute my external audio. Do you have any suggestions?
There is a shareware/free software designed specifically for this task called BlackHole which I use on a weekly basis.  Here is the developer's website and here is his project on GitHub.