To eliminate only noise components from a sound signal including a noise signal.

This noise controller eliminates only noise components from a mixed sound signal including the sound signal S from a car stereo 29 and the noise signal N from an engine 18; and a microphone 32 arranged at a driver' s seat takes in the noise signal N, sound signal S, and a prescribed control signal C, a sound signal component S' which can includes a fine noise component is extracted from those noise signal N, sound signal S, and control signal C, and an error signal E corresponding to the difference between the sound signal component S' and sound signal is outputted. The control signal C, on the other hand, is nearly equal in amplitude to and opposite in phase from the noise signal N and generated on the basis of a reference signal R extracted from a noise source, and an exciter which vibrates corresponding to the vibration frequency of the control signal C is fitted to the windshield 25 on the side of the driver's seat 24 instead of a speaker.