| 摘要 |
<p>A directional loudspeaker control system realizes a preferable sound image localization by correcting directivity of a directional loudspeaker device applied to an acoustic surround system creating a virtual loudspeaker by reflecting a desired sound against a wall or an acoustic reflection panel. In the system, a first directional loudspeaker device emits a first sound to the wall or the acoustic reflection panel so that the reflected sound reaches a predetermined listening/viewing position while a second directional loudspeaker device emits a second sound as a reverse phase of the sound component directly reaching the listening/viewing position among the first sound, to the listening/viewing position. Thus, it is possible to attenuate the sound component (especially, low-frequency component) directly emitted from the first directional loudspeaker device to the listening/viewing position, thereby realizing a preferable sound image localization.</p> |
