This article is about technology, especially electrical engineering. For other uses, see Distortion (disambiguation).
"Distort" redirects here. For other uses, see Distort (disambiguation).
In signal processing, distortion is the alteration of the original shape (or other characteristic) of a signal. In communications and electronics it means the alteration of the waveform of an information-bearing signal, such as an audio signal representing sound or a video signal representing images, in an electronic device or communication channel.
Distortion is usually unwanted, and so engineers strive to eliminate or minimize it. In some situations, however, distortion may be desirable. For example, in noise reduction systems like the Dolby system, an audio signal is deliberately distorted in ways that emphasize aspects of the signal that are subject to electrical noise, then it is symmetrically "undistorted" after passing through a noisy communication channel, reducing the noise in the received signal. Distortion is also used as a musical effect, particularly with electric guitars.
The addition of noise or other outside signals (hum, interference) is not considered distortion, though the effects of quantization distortion are sometimes included in noise. Quality measures that reflect both noise and distortion include the signal-to-noise and distortion (SINAD) ratio and total harmonic distortion plus noise (THD+N).
In signal processing, distortion is the alteration of the original shape (or other characteristic) of a signal. In communications and electronics it means...
Social Distortion is an American punk rock band formed in 1978 in Fullerton, California. The band currently consists of Mike Ness (lead vocals, lead guitar)...
The total harmonic distortion (THD or THDi) is a measurement of the harmonic distortion present in a signal and is defined as the ratio of the sum of the...
Attenuation distortion is the distortion of an analog signal that occurs during transmission when the transmission medium does not have a flat frequency...
Reality distortion field (RDF) is a term first used by Bud Tribble at Apple Computer in 1981, to describe company co-founder Steve Jobs's charisma and...
the term bias distortion has the following meanings: Signal distortion resulting from a shift in the bias. In digital signaling, distortion of the signal...
Spirituality and Distortion is the fourth album by Gautier Serre, under his alias Igorrr, released on Metal Blade Records on 27 March 2020. All tracks...
cognitive distortion is a thought that causes a person to perceive reality inaccurately due to being exaggerated or irrational. Cognitive distortions are involved...
Distortion is a celebration of "Street Life and New Dance Music" all over Copenhagen in the streets, venues, the harbour and a festival site. With over...
In start-stop teletypewriter operation, end distortion refers to the shifting of the end of all marking pulses, except the stop pulse, from their proper...
Amplitude distortion is distortion occurring in a system, subsystem, or device when the output amplitude is not a linear function of the input amplitude...
A wormhole is a hypothetical structure connecting disparate points in spacetime, and is based on a special solution of the Einstein field equations. A...
distortion takes two forms: extension distortion and compression distortion, also called wide-angle distortion and long-lens or telephoto distortion,...
singles to build anticipation for her intended second album, Digital Distortion. However, a series of conflicts with her label, as well as personal conflicts...
Crossover distortion is a type of distortion which is caused by switching between devices driving a load. It is most commonly seen in complementary, or...
around the world, came out with an article addressing Holocaust distortion. It says, “Distortion of the Holocaust is rhetoric, written work, or other media...
amplifier with low inter-modulation distortion will also have low spectral regrowth and low AM-to-PM distortion. Likewise there are two equivalent ways...
In neoclassical economics, a market distortion is any event in which a market reaches a market clearing price for an item that is substantially different...
In signal processing, phase distortion or phase-frequency distortion is distortion, that is, change in the shape of the waveform, that occurs when (a)...
A distortion function in mathematics and statistics, for example, g : [ 0 , 1 ] → [ 0 , 1 ] {\displaystyle g:[0,1]\to [0,1]} , is a non-decreasing function...
Total Distortion is a 1995 full motion video adventure game for Mac and Windows, developed by Pop Rocket. The gameplay has the player as a music video...
guitarist, lead vocalist and songwriter for the punk rock band Social Distortion, which was formed in 1979. Ness was born in Stoneham, Massachusetts on...
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