Around the House : Make Your Own Karaoke Machine

You're sitting at home and getting bored, but you don't have much cash and you are looking for some quick entertainment. Listening to your favorite album with your oversized headphones just isn't cutting it at the moment.

Plug your large set of headphones into the microphone jack on your PC. Use a music playing application to amp the headphones and turn them into your own mic, perfect for some karaoke.

The technology of headphones and microphones are pretty much the same, except in reverse. All it takes to make headphones into a mic is a reverse in the current that feeds it. This is exactly what your mic jack does. It takes the current produces by your voice on the headphones and turns it into sound.