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English
Noun
white noise (uncountable)
- (physics) A random signal (or process) with a flat power spectral density; a signal with a power spectral density that has equal power in any band, at any centre frequency, having a given bandwidth.
2005, John G. Holden, Gauging the Fractal Dimension of Response Times from Cognitive Tasks:Conventional statistical analyses presuppose that intrinsic variability is white noise. White noise yields a jagged and irregular line with a fractal dimension of 1.5, because successive observations are statistically independent of each other.
- (nontechnically) Any nondescript noise used for background or to mask or drown out other noise.
- (by extension) Speech that goes ignored or uncomprehended.
2017, C. R. Robertson, Elements of Fae, page 137:The rest was white noise; I was sick of listening to who I was supposed to be.
Translations
random signal with flat power spectral density
See also
Further reading