= Automatic gain control
{wiki=Automatic_gain_control}
Automatic Gain Control (AGC) is an electronic circuit or algorithm used in audio, video, and communication systems to automatically adjust the gain (amplification level) of a signal to maintain consistent output levels, despite variations in the input signal strength. The primary purpose of AGC is to ensure that the output signal remains within a desired range, which enhances performance by reducing distortion and improving signal quality.
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