"The Ear Mic"
In this Instructable I will show you how to create a pair of Binaural Microphones that can be worn in your ears. All you need is an old pair of Earbuds, 7 bucks and some basic soldering skills.
I use these all the time with my camera, some of the best stereo recording you can get for a fraction of the cost.
What is Bin-aural audio you may ask?
"Binaural recording is a method of recording sound that uses two microphones, arranged with the intent to create a 3-D stereo sound sensation for the listener of actually being in the room with the performers or instruments."
Essentially this effect is possible because of how our brain interprets the sound that we hear. The subtle changes in how long it takes for sound to reach one ear before another and the intensity of that sound allows our brains to interpret where that sound is coming from and how far away it is. It's incredable that this can be replicated with only two microphones, but we also only have two ears.
Listen to this famous audio clip "Virtual Barber Shop" with your headphones on to experience the effect.
Step 1: What You Need
Earbud: Free - $20 (preferably the ear wrap style, normal ear-buds will not work as well if you intend to wear these.) I believe this is similar to the pair I used .
2 x PC-Mount Condenser Microphone Element: - $3.19 can be found at Radio Shack. Heres A link .
Packing Foam: Free - ??? Not sure where to buy the stuff. It is optional, used as a a good wind screen.
Soldering Iron with solder.
Wire stripper or scissors
Hot glue gun