US Patent 11996075 Sound control device and control method thereof

A method for controlling a sound control device in a vehicle includes obtaining at least one of a reference signal obtained from a sensor or an error signal obtained from a sound signal of a microphone, estimating a road surface environment corresponding to a road surface on which the vehicle is traveling based on the reference signal, and adjusting a gain for generating a noise control signal having a magnitude within a preset range based on at least one of the road surface environment or the error signal.