What is white noise?
White Noise is a sound containing a blend of all the audible FREQUENCIES distributed equally over the range of the frequency band. White Noise is analogous to white light which contains all the colors of the rainbow together. The term “White Noise” as used in this article will be applied a little looser to include a host of sounds (waterfall, rain and brook as examples) used for BLOCKING out unwanted sounds.
The article How Guitars Work talks about the difference between noise, tones and notes. White noise is a type of noise that is produced by combining sounds of all different frequencies together. If you took all of the imaginable tones that a human can hear and combined them together, you would have white noise. The adjective “white” is used to describe this type of noise because of the way white light works. White light is light that is made up of all of the different colors (frequencies) of light combined together (a prism or a rainbow separates white light back into its component colors). In the same way, white noise is a combination of all of the different frequencies of sound . You can think of white noise as 20,000 tones all playing at the same time. Because white noise contains all frequencies, it is frequently used to mask other sounds. If you are in a hotel and voices from the room next-door are leaking into your room, you might turn on a fan to drown out the voices. The fan pr
