Journal of Korean Institute of Architectural Sustainable Environment and Building Systems ISSN:1976-6483(Print) 2586-0666(Online) 한국건축친환경설비학회논문집

In this paper, the validity of the receiving points in the heavy weight floor impact sound was investigated by measuring a room mode. Living rooms of different sizes were analyzed by grid measurement. As a result, the sound pressure level was the lowest in the 80 Hz band, which is the one half of the receiving room. It was shown that the fixed microphone position was likely to cause different result by the room mode. The result was the same according to the size of the receiving room. As shown in ISO 16283-2, it was expected that the 4 points of the receiving room would be avoided center points, corners, and nearby walls. Also, the point at which receiving point on the same plane is symmetrical was shown to be avoided. Through this measurements, the minimum guidelines for the receiving points were proposed when measuring the heavy weight impact sound.