Apparatus for generating multiple audio signals and method thereof

An apparatus and a method for generating multiple audio signals are provided to implement a high sound quality and a high channel separation without requiring a specific encoded signal to generate a multi-channel audio signal. In an apparatus for generating multiple audio signals, a sound removing unit(200) generates a first signal by partially removing a plurality of predetermined frequency bandwidth components corresponding to an audio signal region in an input signal bandwidth. An audio amplifying unit(210) calculates a sum component for each channel signal of the input signal and generates a second signal by partially amplifying a plurality of the predetermined frequency bandwidth components corresponding to the audio signal region in the sum component bandwidth. And, a multi-channel audio generation unit(240) generates a center channel audio signal and a front channel audio signal by using the first signal and the second signal.