Amplitude distortion occurs when the amplitude of a signal is altered in a way that does not accurately represent the original signal. This can happen in audio systems, where certain frequencies may be amplified or attenuated unevenly, leading to a change in the sound quality. As a result, the output may sound different from the intended audio, affecting clarity and fidelity. This type of distortion can be caused by various factors, including amplifiers, speakers, or cables that are not functioning properly. It is important to identify and correct amplitude distortion to ensure that the sound produced is true to the original recording, preserving the listener's experience.