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METHOD OF IMPROVING SOUND INSULATION PERFORMANCE, ACOUSTIC ROOM, METHOD OF DESIGNING ACOUSTIC ROOM, METHOD OF DESIGNING DIFFUSER AND SYSTEM OF DESIGNING DIFFUSER
METHOD OF IMPROVING SOUND INSULATION PERFORMANCE, ACOUSTIC ROOM, METHOD OF DESIGNING ACOUSTIC ROOM, METHOD OF DESIGNING DIFFUSER AND SYSTEM OF DESIGNING DIFFUSER
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机译：改善隔音性能的方法，隔音室，隔音室的设计方法，扩散器的设计方法和扩散器的设计系统
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摘要
PROBLEM TO BE SOLVED: To provide a method of improving sound insulation performance which is capable of making the sound pressure distribution in an acoustic room uniform and lowering the sound pressure level of transmitted sounds, the acoustic room, a method of designing the acoustic room, a method of designing a diffuser and a system of designing diffuser.;SOLUTION: When the sound source in the acoustic room exists in an estimated reflection route, the position of the sound source is shifted and is deviated from the reflection route. Further, the diffuser with which good diffusion characteristics can be obtained at the natural frequency of a lower order mode is installed on the inner wall surface existing in the reflection route and a sound absorbing body with which the good sound absorbing characteristics can be obtained at this natural frequencies in the acoustic room in order to make the sound pressure distribution uniform and to lower the sound pressure level of the transmitted sounds.;COPYRIGHT: (C)2003,JPO
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