| 摘要 |
PROBLEM TO BE SOLVED: To provide a sound field control device capable of appropriately correcting strength deviation of sound field effects caused by a reproduction environment difference.SOLUTION: The sound field control device emits sound field effect tones from a plurality of speakers after correcting volumes of sound field effect tones generated from sound field effect information on the basis of a result of confirming a state of acoustic in a reproduction environment, namely, a generation situation of reflection tones. In the sound field control device, in order to confirm the state of acoustic in the reproduction environment, a test tone is generated and emitted from the speakers, and a direct sound of the test tone and a reflection sound generated by reflection on walls or the like are collected by a microphone 3 and analyzed by an analysis section 57, thereby calculating a second coefficient that is a ratio of the direct sound in a collected sound volume measured at a listening position. By correcting the sound field effect tones to form a sound field in accordance with the reproduction environment, the sound field can be made closer to an ideal reproduction environment regardless of the reproduction environment thereof. |
