AUDIO SIGNAL PROCESSING METHOD AND APPARATUS

摘要

The present invention relates to an audio signal processing method and apparatus and, more particularly, to an audio signal processing method and apparatus which can synthesize an object signal and a channel signal and effectively binaural-render the synthesized signal. To this end, the present invention provides an audio signal processing method and an audio signal processing apparatus using the same, the audio signal processing method comprising the steps of: receiving an input audio signal including a multi-channel signal; receiving cut sub-band filter coefficients for filtering the input audio signal, wherein the cut sub-band filter coefficients are at least a part of a sub-band filter coefficient acquired from a binaural room impulse response (BRIR) filter coefficient for binaural-filtering of the input audio signal and the length of the cut sub-band filter coefficient is determined on the basis of filter order information acquired at least partially using reverberation time information extracted from the corresponding sub-band filter coefficient; acquiring vector information indicating the BRIR filter coefficient corresponding to each channel of the input audio signal; and filtering each sub-band signal of the multi-channel signal using the corresponding channel and the cut sub-band filter coefficient corresponding to a sub-band, on the basis of the vector information.