How to Create a Hearing Device

The ability to hear over distance or hear and record things has always captured the imagination of many. Hearing aids and devices are expensive and sometimes not covered by insurance so it can be helpful to learn how to create your own hearing device.

Things you will need:

• MP3 player


• 2 mini multi-media player mikes


• Mini “Y” stereo adapter


• Stethoscope
  
  
  1. Disassemble the ends of the two-multi media mikes to expose the inner parts. You need to eliminate the parts on the end except for the microphones themselves. Be careful not to cut or expose the wires.
  
  
  2. Take the earpieces off the stethoscope.
  
  
  3. Drill out the earpieces and with a bit of ‘engineering’ you should be able to fit them over the ends of the mikes. Glue them into position.
  
  
  4. Place the two mikes back onto the ends of the stethoscope again.
  
  
  5. Plug the two mini multi media player mikes into the mini “Y” stereo adapter.
  
  
  6. Plug the adapter into your MP3 player.
  
  
  7. By placing the stethoscope against a wall, your baby or whatever you can now record the sounds it picks up. You can record sounds heard through the stethoscope into your MP3 player for playback at a later time.
  
  

There are many other ways to record with a hearing or listening device and this is just one. With the addition of a small FM wireless transmitter you can also make the device you build transmit over small distances. A quick Internet search can provide you with many ways to build these devices. The one listed here would cost less than $25 to make.