Noise (disambiguation)

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Noise is a variety of sound, usually meaning any unwanted sound.

Noise may also refer to:

Random or unwanted signals[edit]

Acoustic noise[edit]

In transportation[edit]

Other acoustic noise[edit]

Noise in biology[edit]

Noise in computer graphics[edit]

Noise in computer graphics refers to various pseudo-random functions used to create textures, including:

  • Gradient noise, created by interpolation of a lattice of pseudorandom gradients
  • Simplex noise, a method for constructing an n-dimensional noise function comparable to Perlin noise
  • Simulation noise, a function that creates a divergence-free field
  • Value noise, created by interpolation of a lattice of pseudorandom values; differs from gradient noise
  • Wavelet noise, an alternative to Perlin noise which reduces problems of aliasing and detail loss
  • Worley noise, a noise function introduced by Steven Worley in 1996

Noise in electronics and radio[edit]

Noise in mathematics[edit]

  • Any one of many statistical types or colors of noise, such as
    • White noise, which has constant power spectral density
    • Gaussian noise, with a probability density function equal to that of the normal distribution
    • Pink noise, with spectral density inversely proportional to frequency
    • Brownian noise or "brown" noise, with spectral density inversely proportional to the square of frequency
  • Pseudorandom noise, in cryptography, artificial signal that can pass for random
  • Statistical noise, a colloquialism for recognized amounts of unexplained variation in a sample
  • Noise-based logic, where logic values are different stochastic processes
  • Noise print, a statistical signature of ambient noise, used in its suppression

Other types of noise[edit]

Measures of noise intensity[edit]

In arts and entertainment[edit]

In film and television[edit]

In journalism and literature[edit]

In music[edit]

  • Noise in music, the occurrence of noise(s) in music, including noise reduction and uses in instrument tone, in composition and in performance
    • String noise, made by guitar players sliding the fingers over the strings

Musical styles[edit]

Musical recordings[edit]

Other uses in music[edit]

Other uses in arts and entertainment[edit]

In sport[edit]

Other uses[edit]

See also[edit]