Clip on your DIY Neurophone and enjoy music inside the head without headphones
About 40 years ago, an inventor by the name of Patrick Flanagan invented the Neurophone – a device which was a basic radio transmitter that could be picked by the human nervous system, the signals were received by the skin and the brain interpreted them into sound. The reason we didn’t use the Neurophone ever is because of high voltage that it used, which made it dangerous for routine use.
Patrick also worked on a language translation device to allow humans to communicate with dolphins the device never made to the mainstream instead a new version of the Neurophone emerged which didn’t use radio or high-voltage but used ultrasound instead. Now, a DIY project lets you combine radio signals with ultrasound to try your hands on building your own Neurophone – though not as fine as Flanagan’s but good enough to hear sound as if it was inside the head sans headphones.
To get you started you need a TL494 pulse-width modulation controller, a couple of potentiometers, oscilloscope or frequency counter, pair of piezoelectric disks (for electrodes) and a sine wave signal generator or MP3 player – all of this is easily available of the shelf of any electric store. Fastening the equipment together could be intricate (follow the steps detailed here). The slight electric current created by the unit (once everything is fixed) will be received by the skin, converted into vibration which will be picked by the brain to translate the same into sound. This will be like hearing audio in the head, even when you don’t have a pair of headphones around.
Via: DIY PP