Howtogeek shows you how to enable stereo mix in Windows 7
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.How To Enable Stereo Mix in Windows 7 (to Record Audio)
Nowadays, most sound cards have the ability to record whatever is being output. The only hang-up is accessing that recording channel, which can be done rather easily