SIGNAL PROCESSING METHOD AND APPARATUS

摘要

PURPOSE: A device for processing a signal and a method thereof are provided to create harmonic of a voice signal in a frequency range which is sensitively sensed by a person. CONSTITUTION: A signal processing unit extracts a first signal with a first frequency band from a left signal and a right signal(510). The signal processing unit creates a second signal which has a second frequency band using the first signal(520). The signal processing unit creates a third signal using the first and the second signal(530). The signal processing unit applies the gain to the third signal(540). The gain is created by using the ratio of a center signal within the sum signal.