What Color is Noise?
Remember the scene from Poltergeist (the first one) where the little girl is sitting in front of the TV set with only static? Many claim that is "white " noise. Truth is, most people have little knowledge about what color noise is. The sound and color depends on where it falls on the audio spectrum of high\low frequencies.
White noise is hiss because it contains random sounds across all frequencies. So, is is associated with static as seen on a TV screen with no signal. It is the most effective noise at blocking out other sounds.
Pink noise blends with some hi\lo frequencies so it sounds like a hiss with a low rumble.
Brown noise is rumbling.
Knowing the color of the noise helps engineers work on applications for cell phones and other machines that use sound to distinguish signals.
More by this Author
It all seems rather harmless and it serves a real purpose-having a small microchip implanted just under your skin that can be scanned for ID or medical record information. The chip called, VeriChip, is just one that has...
It has become iconic for its style and grace worn in 1963 during the Kennedy assassination, yet it is mystery.
Join this long list of consumer problems and complaints about this car. Most o the problems are on models pre-2009. Many sad stories.