What is Grey Noise?
Grey noise is one of many colors of noise. There is also white noise, pink noise, brown noise (sometimes called red noise), purple noise (or violet noise), blue noise, orange noise, black noise, green noise, and even more. Noise is an electrical signal that produces an acoustic sound. Colors are assigned to noise and are matched up based, loosely, on the correlations between the sound wave frequency and the color light wave frequency. Grey noise then, has a sound frequency that, if translated to a light frequency, would roughly be the color grey. Grey noise is a random sound that is distinguishable from other types of sound because it sounds the same, to the human ear, at all frequencies. Perhaps the most commonly discussed color of noise is white noise. Also a random noise, white noise is distinguishable not only because of its color but because it actually is the same at all frequencies. That is, it has the same energy levels at all frequency levels. Grey noise does not, but sounds t
