
Furthermore, enter your Password and choose Unlock Button. From the Recovery Screen, choose Utilities and select Startup Security Utility Screen.En ter the Password and click on Continue. To boot Mac to the recovery screen, long press the Power Button until the Loading For Startup Items… appears.Click on Shut Down from Shut Down Your Mac.There enter Administrator Name And Password. You will receive a Privacy & Security pop-up.From the next screen, click on Enable System Extensions….You will see a pop-up saying your System Extension Blocked, click on Open System Settings.Enter the Administrator Name And Password, and select OK Button.You will be navigated to the Loopback installer screen choose on Install Button from the bottom right corner.Now, when you open up QuickTime – Start New Screen Recording and select “Aggregate Device” from drop down arrow on the right.Go into System Preferences – Sound – Output - choose Multi-Output Device.

Place a checkmark next to SoundFlower 2ch and Built-in Output.

Place a checkmark next to Soundflower 2ch and Built-in Microphone.Click the (+) Plus sign in bottom left corner.Go to Applications – Utilities - Open Audio Midi Setup.NOTE: If you do not want to include your microphone audio and only include the audio from your computer in your screen recording, just take out the steps related to the “Aggregate Device” and choose SoundFlower 2ch in QuickTime for your screen recording. This was the exact thing I needed to do when I figured this out, thought I would write it up to remember in the future. This is great for a screen-sharing session where you are talking to someone and walking through an application over the computer. The Holy Grail (Adding Audio from your Microphone and your Computer while being able to hear the audio as it records)


