I was looking for baby's lullaby from the net when I come across the word "White Noise". Now, what is a White Noise? Why it is called, white noise? What's the connection of the white noise to a baby's lullaby? These are the questions that instantly popped into my head.
According to Mr. Wikipedia,
is a random signal (or process) with a flat power spectral density. In other words, the signal contains equal power within a fixed bandwidth at any center frequency. White noise draws its name from white light in which the power spectral density of the light is distributed over the visible band in such a way that the eye's three color receptors (cones) are approximately equally stimulated.
