white noise

English

Noun

white noise (uncountable) Template:examples-right

1. (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.

2. (nontechnically) Any nondescript noise used for background or to mask or drown out other noise.

Translations

random signal with flat power spectral density

• Catalan: soroll blanc m
• Czech: bílý šum m
• Dutch: witte ruis m
• Finnish: valkoinen kohina (fi)
• German: weißes Rauschen n
• Hebrew: רעש לבן m (rá'ash laván)
• (deprecated template usage) {{trans-mid}}
• Kazakh: ақ шу (aq şu)
• Portuguese: ruído branco (pt)
• Russian: бе́лый шум (ru) m (bélyj šum)
• Spanish: ruido blanco m, sonido blanco m
• Swedish: vitt brus (sv) n

See also

• pink noise, red noise, blue noise, violet noise, grey noise
• prewhiten