SIGNAL PROCESSING DEVICE AND SIGNAL PROCESSING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a technique capable of suppressing noise considering solid propagation.SOLUTION: A signal processing device comprises: a speaker; a vibration sensor which detects vibration caused by solid propagation from the speaker and outputs the vibration as a reference signal; and control means for suppressing noise caused by the vibration on the basis of the reference signal. A signal processing method in a signal processing device with a speaker comprises the steps of: detecting vibration caused by solid propagation from the speaker and outputs the vibration as the reference signal (vibration sense step); and suppressing the noise caused by the vibration on the basis of the reference signal (control step).