Definition of Noise (spectral phenomenon)
Noise is any type of random, troublesome, problematic, or unwanted signals.
Acoustic noise may mar aesthetic experience, such as attending a concert hall. It may also be a medical issue inherent in the biology of hearing.
In technology, noise is unwanted signals in a device or apparatus, commonly of an electrical nature. The nature of noise is much studied in mathematics and is a prominent topic in statistics.
Related terms
White noise
In signal processing, white noise is a random signal having equal intensity at different…
Brownian noise
In science, Brownian noise, also known as Brown noise or red noise, is the type of…
Speckle (interference)
Speckle, speckle pattern, or speckle noise designates the granular structure observed in…
Spectral splatter
In radio electronics or acoustics, spectral splatter (also called switch noise) refers…
Noise in music
In music, "noise" has been variously described as unpitched, indeterminate…
Noise spectral density
In communications, noise spectral density (NSD), noise power density, noise power…
Impulse noise (acoustics)
Impulse noise is a category of (acoustic) noise that includes unwanted, almost…
Noise
Noise is sound, chiefly unwanted, unintentional, or harmful sound considered unpleasant…
High-frequency impulse-measurement
HFIM, acronym for high-frequency-impulse-measurement, is a type of measurement technique…
Frequently asked questions
What is Noise (spectral phenomenon)?
Noise is any type of random, troublesome, problematic, or unwanted signals.