Distortion is the alteration of the original shape (or other characteristic) of a signal representing an object, image, sound or waveform.

Distortion is the alteration of the original shape (or other characteristic) of something, such as an object, image, sound or waveform. Distortion is usually unwanted, and so engineers strive to eliminate distortion, or minimize it. In some situations, however, distortion may be desirable, such as a musical effect, particularly with electric guitars.

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