presently many audio chips suffer from pop issues , which is especially serious for single ended audio drivers . an audio pop is a disturbance in the output caused by a sudden transition of chip power , particularly when a chip is powered on or powered off . furthermore , compensation networks included in the amplifiers on audio chips for stability offer a significant path for transmitting power disturbances to the output . hence , circuitry is developed to suppress pops in the output stages of an amplifier .