SOUND FIELD CONTROLLER, SOUND FIELD CONTROL METHOD, AND SOUND FIELD CONTROL PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a sound field controller, a sound field control method, and a sound field control program for alleviating acoustic troubles caused by reflected sounds in a dome only by means of sound field control.

SOLUTION: The sound field controller is provided with: a digital processor 12 for digital arithmetic processing of a sound signal obtained from a sound source signal storage part 11; and a false reflected sound signal generation part 13 for generating false reflected sound signal components lower than the peak level of primary reflected sounds in time intervals of direct sound and primary reflected sounds which are obtained at sound reception points in a dome 1 on the basis of the sound signal subjected to digital arithmetic processing, and performing convolutional operations to the sound signal. The generated false reflected sound field components are outputted into the dome 1 together with sound signal components.

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