| 摘要 |
<p>An audio signal processing apparatus includes: a dividing section (11L,11R) dividing each of audio signals of a plurality of channels (Lch, Rch) into a plurality of frequency bands (sub1-L, . . . , subn-L, sub1R, . . . , subnR); a phase difference calculating section (22) calculating a phase difference (¸ 1r ) between the audio signals of the plurality of channels, for each of the plurality of frequency bands divided by the dividing section; a level ratio calculating section (23) calculating a level ratio (mag 1r ) between the audio signals of the plurality of channels, for each of the plurality of frequency bands divided by the dividing section; and an audio signal processing section performing output gain setting (13-1, . . . , 13-n, 24) with respect to divided signals obtained by the dividing section, on the basis of the phase difference and the level ratio for each of the plurality of frequency bands calculated by the phase difference calculating section and the level ratio calculating section.</p> |
