| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem, wherein localization is pulled to a reproducing loudspeaker position depending on input signals to be reproduced, the localization sense of a virtual sound image is weakened, and full virtual sound image localization sense cannot be obtained, when the virtual sound image is generated using panning or a head transfer function, in a sound image localization processing system that attains virtual sound image localization using one or more sets of paired loudspeakers.SOLUTION: By calculating the azimuth and the size of the centroid of a sound field from multi-channel input signals by a centroid calculating section 2, determining the weight coefficient corresponding to the calculated azimuth and size of the centroid by a weight coefficient determination section 3, and performing virtual sound image generation processing, on the basis of the determined weight coefficient by a virtual sound image generation processing section 4; the localization sense of the virtual sound image is adaptively enhanced for the input signals; and as a result, a sensation of being surrounded by sound is obtained. |
