Jung-Kwon Heo

Device for reproducing multi-channel audio by using two speakers and method therefor

A device and a method for reproducing a multi-channel audio signal with only two speakers preserving the sound field of multi-channel audio reproduction, thereby providing vivid realism to a user (listener). The device for reproducing multi-channel audio to thereby provide vivid realism to a user by using two speakers includes a data restorer to decode a received multi-channel audio signal and to restore the multi-channel audio data of a frequency domain; a directivity preserving processor which has a center channel direction function and a stereo surround channel direction function based on a head related transfer function indicative of the characteristic of the frequency variation due to the head of the user for audio signals of center and stereo surround directions, to mix the center channel audio data and the stereo surround channel audio data multiplied by the direction function with left and right main channel audio data, and to output directivity-preserved left and right main channel audio data to two main channels; and a process domain converter to convert the directivity-preserved left and right main channel audio data into audio data of a time domain.