APPARATUS AND METHOD FOR VISUALIZATION OF MULTICHANNEL AUDIO SIGNALS

摘要

An apparatus and a method for visualizing a multi-channel audio signal are provided to offer a more realistic multi-channel audio service to a user by visually expressing a dynamic volume sense and a dynamic sound field sense of the multi-channel audio signal. A spatial audio decoding unit(110) receives a down-mix signal of a time domain, converts the received down-mix signal into a signal of a frequency domain, and outputs the frequency domain down-mix signal. The spatial audio decoding unit(110) synthesizes a multi-channel audio signal by using the spatial parameter and the down-mix signal. A multi-channel visualizing unit(130) generates visualization information of the multi-channel audio signal by using the frequency domain down-mix signal and the spatial parameter.