AUDIO SIGNAL PROCESSING METHOD AND DEVICE

摘要

The present invention relates to an audio signal processing method and device and, more specifically, to an audio signal processing method and device capable of synthesizing an object signal and a channel signal and binaural rendering the synthesized signals effectively. To this end, the present invention provides an audio signal processing method and an audio signal processing device using the same, the audio signal processing method comprising the steps of: receiving an input audio signal including a multi-channel signal; receiving filter order information variably determined according to each subband of a frequency domain; receiving block length information on each subband on the basis of a fast Fourier transformation length of each subband of a filter coefficient for a binaural filtering of the input audio signal; receiving variable order filtering in frequency-domain (VOFF) coefficients corresponding to each subband and each channel of the input audio signal in block units of the corresponding subbands, wherein the total length of the VOFF coefficients corresponding to the same subband and the same channel is determined on the basis of the filter order information of the corresponding subbands; and filtering each subband signal of the input audio signal by using the received VOFF coefficients so as to generate a binaural output signal.