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"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

The project is fairly simple as is the parts list.

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.

Thats it!

Tools Needed:
Soldering Iron with solder.
Wire stripper or scissors
Hot glue gun
<p>can these DIY mics be used to record video with binaural sound on an iphone? If so, I'd love to give this a try!</p>
Hey any reason why I'm only getting input from one side of the mic??
<p>I have the same problem.</p>
<p>When choosing microphone elements, what should you look for to get optimal quality? I don't know much about them, i just noticed some elements are way more expensive than others, even though they seem to have about the same frequency ranges and sensivity. </p>
Ok, I got the exact parts you mentioned and soldered them up nice and clean. and nothing. no sound. no signal. not to an iphone. not to audacity on my laptop. what am i doing wrong? <br>
Works, until it broke! ;)<br>Great idea and instructable.<br>I think some might work because it needs extra voltage or something because the second set I made was too quiet. Well, I think I fixed it. Thanks!
It&acute;s awesome! I made it and it really works. Thanks.
I always wanted to make one of those. Good Instructable.
Awesome!<br><br>Simple, easy, cheap, fast, efficient. The rain sound over the leaves is very nice.

About This Instructable




More by DracoGT:The Aperture Science Automated Pumpkin Turret Binaural Earbud Microphone AKA holophonic, 3d stereo, bin-aural microphones. For less than $10 Wood Veneer Laptop Mod 
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