| 摘要 |
PROBLEM TO BE SOLVED: To provide an acoustic space non-directional on a horizontal plane and an acoustic space directional on the horizontal plane, which are requested in various utilization scenes such as music appreciation, video appreciation in a home theater or the like, and background music in a wide space such as the lobby of a hotel, etc., by switching the setting of a single speaker unit. SOLUTION: The presence/absence of the action of an acoustic reflector functioning so as to obtain non-directional characteristics is switched by the installation state (direction) of the speaker unit. COPYRIGHT: (C)2009,JPO&INPIT
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