white noise

noise in the background, voice disturbances in a recording

White noise is a random signal (or process) with a flat power spectral density. In other words, the signal's power spectral density has equal power in any band, at any centre frequency, having a given bandwidth. White noise is considered analogous to white light which contains all frequencies.An infinite-bandwidth, white noise signal is purely a theoretical construction. By having power at all frequencies, the total power of such a signal is infinite. In practice, a signal can be "white" with a flat spectrum over a defined frequency band.
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White noise may mean:White noise, a signal with a flat frequency spectrumWhite Noise, the Penn State basketball student sectionWhite noise (slang) a meaningless or distracting commotion or chatter. White Noise (band), an early Electronic music bandWhite Noise (novel), by Don DeLilloWhite Noise (film), starring Michael KeatonWhite Noise: The Light, the sequelWhite noise machine, privacy and sleep aidWhite Noise (villain), a villain made out of static who is a white supremacist, from the Venture Bros. White noise magazine, a London based 'zine.White noise is also a style of White Power music.White Noise Records, a record label.White Noise: A Cautionary Musical, a musical about a pair of sisters mixing music with white power rhetoric.White Noise, a live album by Gary Numan.
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White noise A sound with equal energy at all frequencies, which can be eliminated by raising the 'cut-off' of the detection device. Cf Chaos. [more]White noise - Community and Resources

Noun
1. a `sh' noise produced by a stimulus containing all audible frequencies of vibration
(hypernym) noise, dissonance, racket

Noise having a frequency spectrum that is continuous and uniform over a specified frequency band. (188 ) Note: White noise has equal power per hertz over the specified frequency band. Synonym additive white gaussian noise.