How To Enable “Stereo Mix” in Windows 7 (to Record Audio) - How-To Geek | Music Music Music | Scoop.it
From www.howtogeek.com - March 8, 2012 2:45 PM
Ever need to record something on your computer exactly as it comes out of your speakers?  Enabling “Stereo Mix” will let you do exactly that, and here’s how to do it.