How to Record Mic Sound and Computer Sound

How to setup computer audio and microphone audio on a mac:

Step 1:
Download Soundflower and install it, it will require you to restart your computer.
Soundflower link: http://www.macupdate.com/app/mac/14067/soundflower
Soundflower is free.
Step 2:
Open System Preferences (Under the apple menu in the top left corner)
Open the “Sound” tab.
Click on “Outpur” on the top, and under the “Select a device for sound output:” menu, then click on “Soundflower (2ch)”
Step 3:
Do a spotlight search (The magnifying glass in the top left, or do the shortcut command, cmd + space) and find an application called “soundflowerbed”
When you open it, nothing noticeable should happen, don’t worry.
Step 4:
Now, on your menu bar at the top, there should be a picture of a flower. Click on this and under “Soundflower (2ch)”, click on “Built-in Output”
ReOpen this flower menu, and at the bottom, click on “Audio Setup…”
Step 5:
When a program called “Audio MIDI Setup” opens, click on the + (plus) button at the bottom.
It will give you a choice between “Create Aggregate Device” and “Create Multi-Output Device” Click on “Create Aggregate Device”
On the side, check the “Built-in Microphone” box and the “Soundflower (2ch)” box.
Step 6:
Restart your computer.
When it restarts, open QuickTime Player.
In the top menu bar, click File > New Screen Recording
Next to the record button, click on the arrow.
Now select “Aggregate Device” Or if you renamed it, whatever you renamed it to.
Now you should be able to Screen record anything, listen to its sounds, and have QuickTime Player record both your system sound and your Mic sound!

Happy Recording!