| 摘要 |
PROBLEM TO BE SOLVED: To provide an acoustic reproduction system which forms a virtual sound source with acoustic beams, and more expands the range of developing the virtual sound source effect than the conventional ones. SOLUTION: The acoustic processing unit 100 applies at least a delay process to audio signals to generate a plurality of delayed audio signals for outputting direct sound beam BD directly reaching a designated focus F from a speaker array 1. Furthermore, the unit generates a plurality of delayed audio signals for outputting reflected sound beam BL or BR also reaching the focus F from the speaker array 1, after reflection at the walls WL or WR, and supplies them to a plurality of speakers SP-k (k=1 to n) of the speaker array 1. COPYRIGHT: (C)2007,JPO&INPIT
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