Définition de distortion dans le dictionnaire français en ligne. Learn more. Distortion in music is often intentionally used as an effect when applied to an electric guitar signal in styles of rock music such as heavy metal and punk rock. La paralysie du nerf facial produit la distorsion de la face. Because welding involves highly localised heating of joint edges to fuse the material, non-uniform stresses are set up in the component because of expansion and contraction of the heated material. Chaque définition comme celle de Distorsion est issue du Dictionnaire de la langue française d'Émile Littré dont la rédaction dura de 1847 à 1865. distortion synonymes, distortion antonymes. It also shows the output from a non-distorting transfer function (straight line). Déformation par une torsion. definition of cities and rural areas: the new degree of urbanisation Lewis Dijkstra and Hugo Poelman ... area size, the results are distorted and reduce the comparability ... To avoid this distortion, the method had to find a way of looking ) If F is a linear function, for instance a filter whose gain and/or delay varies with frequency, the signal suffers linear distortion. Vous avez prononcé, mon cher (...) des mots qui ne se conjuguent, ne se goupillent que d'une façon très aléatoire, par distorsion du sens et par interprétation abusive. Technical Article Understanding, Calculating, and Measuring Total Harmonic Distortion (THD) February 20, 2017 by David Williams Total harmonic distortion (THD) is a measurement that tells you how much of the distortion of a voltage or current is due to harmonics in the signal. Action de distordre. Direction. For example, the non-uniform frequency response curve of AC-coupled cascade amplifier is an example of frequency distortion. Sharp distortion with high tone definition - no eye will remain dry. 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. Select the Zoom tool from the toolbox in the dialog box, and click in the image to zoom in, or Alt-click (Option-click in Mac OS) to zoom out. Such a situation can occur when an amplifier is overdriven—causing clipping or slew rate distortion when, for a moment, the amplifier characteristics alone and not the input signal determine the output. This form of distortion mostly occurs due to electrical reactance. The true behavior of the system is usually different. If you’re working with a data set of persons per square mile, for example, your map needs to make sure each square mile looks the same size. région à surface déformée. Définitionsde distorsion. Action de distendre un muscle, un ligament, de déformer le... La distorsion entre les salaires masculins et féminins. distortion example sentences. Nonlinearities in the transfer function of an active device (such as vacuum tubes, transistors, and operational amplifiers) are a common source of non-linear distortion; in passive components (such as a coaxial cable or optical fiber), linear distortion can be caused by inhomogeneities, reflections, and so on in the propagation path. In cartography, a distortion is the misrepresentation of the area or shape of a feature. The finding per se is not a mass. Distortion definition, an act or instance of distorting. This definition complies with that of standard IEC 61000-2-2.. Linear distortion does not introduce new frequency components to a signal but does alter the balance of existing ones. (6) This definition describes distortion in … The level at which harmonic distortion becomes audible depends on the exact nature of the distortion. Gratuit. Example sentences with the word distortion. Dissertation definition, a written essay, treatise, or thesis, especially one written by a candidate for the degree of Doctor of Philosophy. Local angles are correct along standard parallels or standard lines. Déséquilibre, manque d'harmonie entre deux ou plusieurs choses . This article incorporates public domain material from the General Services Administration document: "Federal Standard 1037C". Une certaine altération du signal est inévitable ; on cherche à transmettre celui-ci avec le plus d'exactitude possible. If distortion control is used, the energy dissipated by distortion control can be output upon request (see “Abaqus/Explicit output variable identifiers,” Section 4.2.2, for details). This article covers several key issues on distortion in arc welded fabrications, especially basic types of and factors affecting the degree of distortion. add example. Harmonic distortion may be expressed in terms of the relative strength of individual components, in decibels, or the root mean square of all harmonic components: Total harmonic distortion (THD), as a percentage. The shape of the Earth is represented as a sphere. 1 Anglais. It is also modeled more accurately as an oblate spheroid or an ellipsoid. Here, all the components of the input signal are not amplified with the same phase shift, hence making some parts of the output signal out of phase with the rest of the output. Select a tool from the toolbox. Multi-national corporations. Prononciation de distortion définition distortion traduction distortion signification distortion dictionnaire distortion quelle est la définition de distortion . For other uses, see, "Distort" redirects here. Selon la légende la distorsion aurait été inventée par The Kinks pour leur titre You Really Got Me ; Dave Davies lacère le haut-parleur de son petit ampli, un Watkins (ou un ElPico), lequel produit un son distordu, les effets fuzz électroniques étant rares à l'époque. An example of a similar correction is where LP/vinyl recordings or FM audio transmissions are deliberately pre-emphasised by a linear filter, the reproducing system applies an inverse filter to make the overall system undistorted. [Category=Geospatial ] ...Map Projection Distortions Each of the different types of projections have strenghts and weaknesses. La distorsion désigne, dans un appareil ou un canal de transmission, l'ensemble des modifications indésirables d'un signal1 qui ne soient ni un gain, ni une atténuation, ni un retard2. Plus, the name and graphics are … Harmonic distortion in radio frequency applications is rarely expressed as THD. For electric guitar; This distortion pedal was designed according to the desires of Pantera's Dimebag Darrel Find another word for distortion. The shape of the Earth is represented as a sphere. {\displaystyle y(t)} Amplitude distortion is distortion occurring in a system, subsystem, or device when the output amplitude is not a linear function of the input amplitude under specified conditions. Lung architectural distortion in thoracic radiology refers to a descriptive term give when the normal pulmonary bronchial, vascular, fissural or septal anatomy is disrupted and manifested as loss of smooth course of the fissures, crowding of dilated bronchioles or vessels with angulated course 1.This can be caused by a number of disease processes and can either diffuse or localized. Distortion is also used as a musical effect, particularly with electric guitars. How to use distortion in a sentence. Déformation d'un phénomène périodique au cours de sa transmission. Fr., 1967, p. 346). Électroacoustique. Distortion definition: Distortion is the changing of something into something that is not true or not acceptable... | Meaning, pronunciation, translations and examples Définition. What causes distortion? Can be found only in dispersive media. distortion. The definition is great, means a distortion that still let the notes ring in chords. (Médecine) État d’une partie du corps qui se tourne d’un seul côté par le relâchement des muscles opposés, ou par la contraction des muscles correspondants. The Mercator map is so popular that most people have a mental image of the world that is wildly inaccurate. Cependant, le groupe ayant été formé en 1964, il serait surprenant que cette légende soit fondée, puisque la distorsion aurait été utilisée dès 1956 par Paul Burlison, le guitariste … y stemming. If areas get distorted, some places will start looking sparser or denser than they really are. All Free. Forums pour discuter de distortion, voir ses formes composées, des exemples et poser vos questions. Décrite comme une grande force de l’évolution, elle est causée par divers facteurs génétiques ou physiologiques, influencés par l’environnement. When analog long distance trunks were commonplace, for example in 12 channel carrier, group delay distortion had to be corrected in repeaters. The transfer function of an ideal amplifier, with perfect gain and delay, is only an approximation. Many approaches are described in the literature for measuring the distortion of an optical window, but most suffer from either poor resolution or processing difficulties. In the art world, a distortion is any change made by an artist to the size, shape or visual character of a form to express an idea, convey a feeling or enhance visual impact. Définition, traduction, prononciation, anagramme et synonyme sur le dictionnaire libre Wiktionnaire. 2. in psychology, the process of altering or disguising unconscious ideas or impulses so that they become acceptable to the conscious mind. Distortion is the alteration of the original shape (or other characteristic) of something. La distorsion de ségrégation (DS) des allèles est un phénomène commun à tous les êtres vivants. The audit ruled out any distortion of the accounting records. Électricité. Another word for distortion. Les progrès en la matière ont donné en audio le concept de Haute Fidélité3. Harmonic distortion is generally expressed as a percentage. [1] Nonlinearities that give rise to amplitude distortion in audio systems are most often measured in terms of the harmonics (overtones) added to a pure sinewave fed to the system. Correction is not possible if the inverse does not exist—for instance if the transfer function has flat spots (the inverse would map multiple input points to a single output point). This page was last edited on 19 December 2020, at 15:20. They are hard to transport and store; for example you can not stuff a globe in your backpack whil… Informations sur distortion dans le dictionnaire gratuit en ligne anglais et encyclopédie. Harmonic distortion adds overtones that are whole number multiples of a sound wave's frequencies. distortion definition in English dictionary, distortion meaning, synonyms, see also 'barrel distortion',harmonic distortion',distortional',distort'. 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. This would mean that features lying on the 20th parallel are equally distorted, features on the 40th parallel are equally distorted … Map Projections - types and distortion patterns. You can also use the Zoom tool to drag over an area of the preview you want to magnify. . Other forms of audio distortion are non-flat frequency response, compression, modulation, aliasing, quantization noise, wow and flutter from analog media such as vinyl records and magnetic tape. Keep scrolling for more. : +33 3 83 96 21 76 - Fax : +33 3 83 97 24 56 Area. [8] High frequency Harmonic Distortion in Amplifiers.pdf - Free download as PDF File (.pdf), Text File (.txt) or read online for free. 1. distortion definition: 1. a change to the intended or true meaning of something: 2. a change to the original or natural…. (in support of MIL-STD-188), This article is about technology, especially electrical engineering. The concept of Von mises stress arises from the distortion energy failure theory. Déséquilibre, manque d'harmonie entre deux ou plusieurs choses : La distorsion entre les salaires masculins et féminins. See more. Distortion energy theory. 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). As the system output is given by y(t) = F(x(t)), then if the inverse function F−1 can be found, and used intentionally to distort either the input or the output of the system, then the distortion is corrected. Shape, scale, direction, angle, and distance distortion increase with the distance from the standard parallels. The two types of distortion most evident in … In some situations, however, distortion may be desirable. - Distorsion de la … Enrich your vocabulary with the English Definition … Distorsion is one of the other abnormalities such as mass and calcifications that could be seen on a mammogram. Although they can represent size, shape, distance and directions of the Earth features with reasonable accuracy, globes are not practical or suitable for many applications. déformation indésirable d'un signal fonction du temps, qui se produit dans un appareil ou au cours d'une opération telle que l'enregistrement, la reproduction ou la transmission. This produces an uncorrectable loss of information. These measurements should be expressed as a percentage of the surface area of the original euro banknote [...] before it was mutilated or damaged, in order [...] to prevent the distortion of measurements, [...] for instance in situations where the [...] euro banknote is mutilated or damaged due to shrinkage. Limitations. Learn more. 1 : the censorship of unacceptable unconscious impulses so that they are unrecognizable to the ego in the manifest content of a dream. This problem is caused by map distortion. Distortion definition, an act or instance of distorting. In practice, this is a poor method for analogue audio (although good for converters between analogue and digital) because the small deviations produced by high-quality audio make it difficult to keep measurement uncertainties below the deviations. as, When the transfer function comprises only a perfect gain constant A and perfect delay T. the output is undistorted. Breast architectural distortion is a descriptive term in breast imaging (mammography, ultrasound, and MRI) to indicate that the breast parenchyma is tethered or indented. Telegraphic distortion is a similar and older problem, distorting the ratio between mark and space intervals.[2]. Note that the resulting value may exceed one. The first trace (in black) shows the input. A type of map invented by Geradus Mercator in 1569 to help ship masters across the sea, it had a distortion however, that being the distortion of the size of areas particularly the North and South poles. (Elle affecte les lignes droites ne passant pas par l'axe optique ou le centre de l'image d'un système optique.). A distortion on a map is when you transfer information from a curved suface to a flat suface losing some accuracy. Les définitions et citations issue du Littré ne sont pas les nôtres et ne reflètent aucunement nos opinions. 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. The human ear cannot hear phase distortion, except that it may affect the stereo imaging. Find more ways to say distortion, along with related words, antonyms and example phrases at Thesaurus.com, the world's most trusted free thesaurus. Distance. translation and definition "distorted surface area", English-French Dictionary online. In most fields, distortion is characterized as unwanted change to a signal. Distorsion entre les prix de revient et les ressources des Français (Belorgey, Gouvern. distortion [dis-tor´shun] 1. the state of being twisted out of a natural or normal shape or position. This is sometimes called bias distortion. 7 synonyms of distortion from the Merriam-Webster Thesaurus, plus 4 related words, definitions, and antonyms. The word distortion in simple terms is a word used to described mammographical abnormalities in which the architecture of a portion of the breast doesn't look normal. The Mercator projection, for example, distorts by exaggerating the size of regions at high latitude. distortion - traduction anglais-français. The only reason I gave it four stars it's because this is a one sound pedal, it isn't a pedal that can go from slight over-driven to distortion, it's just purely distortion. The Main text A new technology has been developed to measure roll wave distortion on-line as glass Elles n’émanent pas de la rédaction du Monde ou de Dicocitations et ne sauraient les engager. Direction is distorted elsewhere. Even on a conformal map, shapes are a bit distorted for very large areas, like continents. 1.1 Étymologie; 1.2 Nom commun; 1.3 Prononciation; 1.4 Voir aussi; Anglais [modifier le wikicode] Étymologie [modifier le wikicode] Du latin distortio. Distortion energy failure theory is comparison between 2 kinds of energies, 1) Distortion energy in the actual case 2) Distortion energy in a simple tension case at the time of failure. It is important that imagery seen through large area windows, such as those used on space vehicles, not be substantially distorted. distortion définition, signification, ce qu'est distortion: 1. a change to the intended or true meaning of something: 2. a change to the original or natural…. It is also modeled more accurately as an oblate spheroid or an ellipsoid.A globe is a scaled down model of the Earth. 2. in psychology, the process of altering or disguising unconscious ideas or impulses so that they become acceptable to the conscious mind. It may be more listenable with less distortion at a lower power output level, but if you run into a amplifier or receiver that lists a 10% distortion level (or any distortion level higher than 1%) for its stated power output, try to get some. Equal-area projection definition, a projection in which regions on the earth's surface that are of equal area are represented as equal. In the audio case, this is mainly caused by room acoustics, poor loudspeakers and microphones, long loudspeaker cables in combination with frequency dependent loudspeaker impedance, etc. D F≡(1/ ). Normally it sounds loud, crunchy, obscure, bright and full of character, but it can be much more than this narrow definition. défaut d'une image dans laquelle certaines formes géométriques des objets ne sont pas respectées. Medical Definition of distortion. t distorsion \dis.tɔʁ.sjɔ̃\ féminin. See more. DISTORSION (s. f.) [di-stor-sion ; en vers, de quatre syllabes]. can be written as a function of the input Cambridge Dictionary +Plus Cancellation of even-order harmonic distortion, Audio Electronics by John Linsley Hood; page 162, "Telegraphic Type Services Standard Interface Specifications", https://en.wikipedia.org/w/index.php?title=Distortion&oldid=995156666, Wikipedia articles incorporating text from the Federal Standard 1037C, Wikipedia articles incorporating text from MIL-STD-188, Creative Commons Attribution-ShareAlike License. See more. See more. This diagram shows the behaviour of a signal (made up of a square wave followed by a sine wave) as it is passed through various distorting functions. Roller Wave Distortion – Definition, Causes and a Novel Approach to Accurate, On-line Measurement High-quality, low-distortion, heat-treated glass can be consistently manufactured using on-line measurement of roll distortion. Scale is true along the equator. In optics, image/optical distortion is a divergence from rectilinear projection caused by a change in magnification with increasing distance from the optical axis of an optical system. et/ou au fig. Distortion occurs when the transfer function F is more complicated than this. ecb.europa.eu. Mud and mumble remain outside, however - not many distortion pedals can do that! Distortion and overdrive are forms of audio signal processing used to alter the sound of amplified electric musical instruments, usually by increasing their gain, producing a "fuzzy", "growling", or "gritty" tone.Distortion is most commonly used with the electric guitar, but may also be used with other electric instruments such as bass guitar, electric piano, and Hammond organ. A globe is a scaled down model of the Earth. An audio example of a short sample followed by different distorted versions of it. Cylindrical equal area is an equal-area (equivalent) projection. Some patients may have a small problem area that can be addressed in as little as an hour of surgery. distortion - [map projections] On a map or image, the misrepresentation of shape, area, distance, or direction of or between geographic features when compared to their true measurements on the curved surface of the earth. According to the standard, h can generally be limited to 50.This equation produces a single value indicating the distortion of a voltage or a current flowing at a given point in a distribution system. The amount of distortion, however, is regular along some lines in the map. et admin. Mourant sous les roues carnassières Dans son crâne vague, il sentit Une distorsion étrangère Avant de connaître l’oubli With the scoop switch, the mids can be lowered, at which point it becomes quite nasty. Action de distendre un muscle, un ligament, de déformer le visage, etc. P. métaph. Arnoux, Double chance, 1958, p. 83. distortion - WordReference English dictionary, questions, discussion and forums. In cartography, a distortion is the misrepresentation of the area or shape of a feature. Distortion. The area is a part of a place, usually defined by a function. With respect to audio, distortion refers to any kind of deformation of an output waveform compared to its input, usually clipping, harmonic distortion, or intermodulation distortion (mixing phenomena) caused by non-linear behavior of electronic components and power supply limitations. Copy to clipboard; Details / edit ; Termium. Often referred to as "abstraction," examples of distortion include "The Weeping Woman" by Picasso and "The Adoration of the Shepherds" by El Greco. A nonlinear channel will have a measurable output signal. Non-flat frequency response is a form of distortion that occurs when different frequencies are amplified by different amounts in a filter. Although they can represent size, shape, distance and directions of the Earth features with reasonable accuracy, globes are not practical or suitable for many applications. The scale is correct along the standard parallels. Déformation, altération : 2. There are 4 ways a map can be distorted: size, shape, direction, and distance. 2. Learn more. The magnitude of the distortion is expressed in percent of an ideal unit pulse length. Sens du mot. If you can't stop talking, don't sit in the quiet area of the library. One of the many lines on maps running from the North Pole to the South Pole; used to measure degrees of longitude . In a filter, group delay tends to peak near the cut-off frequency, resulting in pulse distortion. distortion - a change (usually undesired) in the waveform of an acoustic or analog electrical signal; the difference between two measurements of a signal (as between the input and output signal); "heavy metal guitar players use vacuum tube amplifiers to produce extreme distortion" Définition : distorsion (f) (méd) État d’une partie du corps qui se tourne d’un seul côté par le relâchement des muscles opposés, ou par la contraction des muscles correspondants. In telecommunication and signal processing, a noise-free system can be characterised by a transfer function, such that the output In a waveguide, phase velocity varies with frequency. distorsion, nom féminin Sens 1 Défaut d'un appareil qui enregistre des sons ou des images et qui les reproduit de façon déformée . A conformal map distorts area—most features are depicted too large or too small. For other uses, see. Different types of distortion (like crossover distortion) are more audible than others (like soft clipping) even if the THD measurements are identical. Since the definition of non-linear distortion was that the transfer characteristic should deviate from a straight line, we could measure the deviations. PSNR (sigle de Peak Signal to Noise Ratio) est une mesure de distorsion utilisée en image numérique, tout particulièrement en compression d'image. Distortion is usually unwanted, and so engineers strive to eliminate or minimize it. Anagramme et synonyme sur le dictionnaire Français en ligne anglais et encyclopédie is. Situations, however - not many distortion pedals can do that mass calcifications... La rédaction dura de 1847 à 1865 direction, and so engineers strive eliminate... In cartography, a distortion is expressed in percent of an ideal unit pulse length ; area distortion definition commonplace! Ressources des Français ( Belorgey, Gouvern la distorsion de ségrégation ( DS ) des allèles est un commun! A non-distorting transfer function ( straight line ) de quatre syllabes ] angle, and distance distortion increase the. Two types of projections have strenghts and weaknesses Each of the other abnormalities such mass. Deviate from a non-distorting transfer function of an ideal amplifier, with perfect gain and delay, is regular some... To electrical reactance inévitable ; on cherche à transmettre celui-ci avec le plus d'exactitude possible fabrications, especially basic of! 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First trace ( in black ) shows the input map, shapes are a bit distorted for very large,. Represented as equal lines in the map intensity in an optical system whole number multiples a! Size, shape, direction, angle, and distance will have a small problem that! Phénomène commun à tous les êtres vivants of the Earth other uses, see, `` ''... Category=Geospatial ]... map projection Distortions Each of the many lines on maps from... Les progrès en la matière ont donné en audio le concept de Fidélité3. Some patients may have a measurable output signal ways a map can be addressed in as as... That are whole number multiples of a feature 19 December 2020, at which distortion... Standard lines distortion is usually different ou de Dicocitations et ne sauraient engager! L'Image d'un système optique. ) alter the balance of existing ones définition comme celle de distorsion est issue Littré. Be constant along any given parallel traduction distortion signification distortion dictionnaire distortion est... In which regions on the Earth is represented as equal extending along the central.... Émanent pas de la rédaction dura de 1847 à 1865 usually different components to a flat suface losing some..