Question

--------------means that the signal changes its forms or shape

Answer 1

《《《 Distortion means that the signal changes its forms or shape. 》》》

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Answer 2

Distortion means that the signal changes its forms or shape.

• The term "distortion" refers to the changing of something's original form (or another attribute).
• In communications & electronics, it refers to the changing of the waveform of an information-carrying signal in an electronic device or communication channel, such as an audio signal representing sound or a video signal representing pictures.
• Engineers seek to avoid or decrease distortion since it is typically undesirable. However, in other circumstances, distortion may be advantageous.
• Through noise removal systems such as the Dolby system, for comparison purposes, an audio signal has been consciously distorted in emphasizing parts of something like the signal that seems to be subordinate to electrical interference, so it is concentrically "undistorted" since transferring through with a noisy channel of communication, lessening the noise in the receiver end. Distortion is a musical effect that is commonly utilized with electric guitars.