
Step 4- Now open QuickTime and select the newly created "Aggregate device" under the "Options" and start recording. Step 3- Go to System preferences> Sound> Output> Select the newly created "multi-output device" Step 2- Open the "Audio MIDI setup" on your system> Click the "+" button in the bottom left corner and click "Create Aggregate device" and name it> Select the "BlackHole 16 ch" checkbox> Click the"+" again and click "Create multi-output device" and name it> Select the "Built-In Output" and "BlackHole 16 ch" check boxes and make sure you have "Built-In Output" under the Master Device multiselect.

Click the given link> Sign-up> E-mail confirmation> Install the software. Step 1- Install BlackHole, an audio driver. Now click the record button and record your computer's audio! When you're done and you want to hear audio through your speakers again, go back to System Preferences>Sound>Output, and click on "Internal Speakers." Your audio will now play through your internal speakers again.Follow the steps below and start recording your mac screens with audio right away. Under the microphone section, click on "Soundflower (2ch)." If you would rather record ONLY audio and not the screen, click File>New Audio Recording, and do the same thing. Click the little arrow on the side of the Quicktime window. (The only downside is that you will not be able to hear audio through your speakers as long as this is selected.) Now open Quicktime Player and click on File>New Screen Recording. Make sure your in the "Output" section, and click on "Soundflower (2ch)." Now your computer is outputting all of it's audio through the Soundflower (2ch) extension.

It shows up as an audio device to just to make everything even easier. Click on "Output." There should now be two more options there, "Soundflower (2ch)," and, "Soundflower (64ch)." This is the extension that you just installed. Once Soundflower is successfully installed, visit the Sound tab in your System Preferences again.
