SEMI-ANECHONIC ROOM AND SOUND CHARACTERISTIC EXPERIMENT APPARATUS OF VIBRATED BODY TRANSMISSION LOSS EXPERIMENT APPARATUS OF SOUND INTERCEPTION BODY SUPPORT STRUCTURE OF HEAVY-WEIGHT VIBRATING BODY EQUIPPED IN THAT

摘要

The present invention is a semi-anechoic room in which the soundproofing and sound absorbing facilities are installed on the ceiling, four walls and doors to block external noise and prevent reflection of sound, and the bottom plate takes a predetermined structure from the base bottom by an insulation mount for dust prevention. An opening is formed in the core portion of the bottom plate, and by presenting a structure further comprising an experimental apparatus mounting chamber having an interior receiving space in the space between the opening and the base bottom, All experiments on acoustic characteristics and transmission loss of sound insulation are to be carried out efficiently.