| 摘要 |
PROBLEM TO BE SOLVED: To robustly attain desired acoustic effect with respect to change of both ear positions of a listener.SOLUTION: According to an embodiment, an acoustic control device includes a control filter 421 and speakers 101 and 102. The control filter 421 multiplies a first acoustic signal by a control filter coefficient to obtain a second acoustic signal. The control filter coefficient is calculated on the basis of a plurality of first head transfer function sets from the speaker 101 and the speaker 102 to a plurality of object both ear positions and a plurality of second head transfer function sets from an object virtual sound source 10 to the plurality object both ear positions so as to allow a second spatial average of a plurality of complex sound pressure ratio at the plurality of object both ear positions when the second acoustic signal and the first acoustic signal are respectively emitted from the speaker 101 and the speaker 102 to be close to a first spatial average of a plurality of complex sound pressure ratio at the plurality of object both ear positions when the first acoustic signal is emitted from the object virtual sound source 10. |
