Distortion

Distortion power factor The distortion power factor is the distortion component associated with the harmonic voltages and currents present in the system.

While "distortion" can include arbitrary deformation of an image, the most pronounced modes of distortion produced by conventional imaging optics is "barrel distortion", in which the center of the image is magnified more than the perimeter (figure 3a).

Distortion Tank Bar (Wandsworth Road): We think we've only ever had one or two Distortion beers, but they were mighty good — and this taproom, where six different brews are served fresh from the tank, looks spiffy in a sci-fi sorta way.

A quality measure that explicitly reflects both the noise and the distortion is the Signal-to-noise-and-distortion (SINAD) ratio.

A typical integrated sound card, the Realtek ALC887, according to its data sheet has distortion of about 80 dB below the fundamental; cards are available with distortion better than -100 dB.

Different software can be used to generate sinewaves, but the inherent distortion may be too high for measurement of very low-distortion amplifiers.

Different types of distortion (like crossover distortion ) are more audible than others (like soft clipping ) even if the THD measurements are identical.

Distinction can be made between the degree of late (positive) distortion and the degree of early (negative) distortion.

Distortion and attenuation For demodulation, the demodulation oscillator's frequency and phase must be exactly the same as modulation oscillator's, otherwise, distortion and/or attenuation will occur.

Distortion, and Other Effects Limited bandwidth also results in lower amounts of feedback at higher frequencies, producing higher distortion, and output impedance as the frequency increases.

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 (see also overdrive and distortion synthesis ).

Distortion main Tissot's Indicatrices on the Mercator projection The classical way of showing the distortion inherent in a projection is to use Tissot's indicatrix.

Distortion power factor is a measure of how much the harmonic distortion of a load current decreases the average power transferred to the load.

For instance, crossover distortion at a given THD is much more audible than clipping distortion at the same THD, since the harmonics produced are at higher frequencies, which are not as easily masked by the fundamental.

Given a sinewave generator of very low inherent distortion, it can be used as input to amplification equipment, whose distortion at different frequencies and signal levels can be measured by examining the output waveform.

Much like the use of probability in optimal coding theory, rate-distortion theory heavily draws on Bayesian estimation and decision theory in order to model perceptual distortion and even aesthetic judgment.

Shortwave transmissions often have bursts of distortion, and "hollow" sounding loss of clarity at certain aural frequencies, altering the harmonics of natural sound and creating at times a strange "spacey" quality due to echoes and phase distortion.

Tang ina mo main seeAlso 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.

That tolerance of distortion, and indeed the possibility that some "warmth" or second harmonic distortion (tube sound) improves the "musicality" of the sound, are subjects of great debate.

The level at which harmonic distortion becomes audible depends on the exact nature of the distortion.