| 摘要 |
<p>An audio signal processing apparatus includes: a division section (11,12) that divides at least two or more channel audio signals into components in a plurality of frequency bands; a phase difference calculation (13A-13n) section that calculates a phase difference between the two or more channel audio signals at each the frequency band; a level ratio calculation section (13A-13n) that calculates a level ratio between the two or more channel audio signals at each the frequency band; a sound image localization estimation section that estimates, based on the level ratio or the phase difference, sound image localization at each the frequency band; and a control section that controls the estimated sound image localization at each the frequency band by adjusting the level ratio or the phase difference.</p> |
