| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a sound masking system capable of providing a sound environment appropriate for each area. <P>SOLUTION: A sound masking system 1 which output masking sound into an indoor includes a ceiling 12 and a loudspeaker 10 arranged in a ceiling space and outputting the masking sound. A sound insulation layer 14 which insulates the masking sound is arranged in a ceiling space of a meeting area A of an indoor area sectioned into the meeting area A and an office area B, so that a range into which the masking sound is output can be selectively set. <P>COPYRIGHT: (C)2012,JPO&INPIT |
