The eyeborg - an electronic device that allows colours to be perceived as sounds

Since 2004, though, he's experienced color through sound via a device he calls the "eyeborg". It's a cybernetic third eye of sorts that he keeps strapped to his head at all times. The device translates the wavelengths of different colors into audible tones, then sends them to Harbisson's inner ears via bone conduction. The eyeborg can detect 360 different hues — not nearly as many as the normal human eye is capable of detecting, but still a lot better than no color at all.

“The eyeborg” transposes color into a continuous electronic beep, exploiting the fact that both light and sound are made up of waves of various frequencies. Red, at the bottom of the visual spectrum and with the lowest frequency, sounds the lowest, and violet, at the top, sounds highest. A chip at the back of Harbisson’s head performs the necessary computations, and a pressure-pad allows color-related sound to be conducted to Harbisson’s inner ear through the vibration of his skull, leaving his outer ears free for normal noise.

The first eyeborg was created in England in 2003 by Adam Montandon in collaboration with Neil Harbisson.

Adapted from: http://mashable.com/2013/06/01/eyeborg/

More info: http://www.eyeborgapp.com/

Watch the video: https://www.youtube.com/watch?v=Ts_-XVPQOGM