Patent ID: 9578437
Date: 2017-02-21
CPC Classifications: G10L,H03H,H04R,H04S

Claim:
1. A method for processing an audio signal, the method comprising: receiving multi-audio signals including multi-channel or multi-object signals, each multi-audio signal including a plurality of subband signals; receiving truncated subband filter coefficients for filtering the multi-audio signals, the truncated subband filter coefficients being at least a portion of subband filter coefficients obtained from binaural room impulse response (BRIR) filter coefficients for binaural filtering of the multi-audio signals, lengths of the truncated subband filter coefficients being determined based on filter order information obtained by at least partially using characteristic information extracted from the corresponding subband filter coefficients, and a length of truncated subband filter coefficients of at least one subband being different from a length of truncated subband filter coefficients of another subband; and filtering each subband signal of the multi-audio signals by using truncated subband filter coefficients corresponding to each subband signal.