SIGNAL PROCESSING METHOD, INFORMATION PROCESSING DEVICE, AND SIGNAL PROCESSING PROGRAM

摘要

In order to suppress both noise having an unknown characteristic and noise having a known characteristic, disclosed is an information processing device provided with a noise suppression means which suppresses noise included in an inputted deteriorated signal, said information processing device being characterized in that the noise suppression means includes a first output means which, in order to suppress known noise having a known property, outputs known noise information using prestored noise information, and a second output means which, in order to suppress unknown noise having an unknown property, estimates the unknown noise and outputs unknown noise information.