A gaming machine in a gaming establishment enhances its game sounds by
attenuating ambient noise in the establishment. The gaming machine
includes a microphone, processing circuitry, and an audio speaker. The
microphone detects ambient noise and generates a noise signal from the
sensed ambient noise. The processing circuitry generates an anti-noise
signal from the noise signal and adds the anti-noise signal to a game
sound signal generated by the gaming machine to produce an output signal.
The audio speaker is driven with the output signal.