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Assessment of impact-sound floor insulation
The Journal of the Acoustical Society of America, 1978The fundamental method of calculating sound insulation for various kinds of slab materials is described theoretically, based on the assumptions that there is a well-diffused bending wave field in a floor slab and that the impact-force power spectrum of the tapping machine depends on floor covering and slab materials, while that of the tire is assumed ...
M. Yasuoka, H. Fujii
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Sound absorbing ceiling to reduce heavy weight floor impact sound
Building and Environment, 2020Abstract This study aims to reduce heavy weight impact sound, changing the sound field by applying sound absorbing ceiling. Sound absorption performance is reviewed at the reverberation chamber, and the ceiling is designed to be higher than the sound absorption coefficient of a commercial base trap.
Hye-kyung Shin, Kyoung-woo Kim
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Measurement of Sound Field for Floor Impact Sounds Generated by Heavy/Soft Impact Sources
Acta Acustica united with Acustica, 2010Field measurements of floor impact sounds at low frequencies give poor repeatability due to spatial sampling problems. In this study, the spatial distribution of heavy-weight impact sound pressure levels was investigated by field measurements using heavy/soft impact sources, which have been specified as a standard heavy-weight impact source in 140-11 ...
Seung Yup Yoo +3 more
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Stimulus-response measurement of floor impact sound
The Journal of the Acoustical Society of America, 1996In the area of floor impact testing, a number of excitation techniques have been used for evaluating the degree of sound transmission. The ultimate goal of the excitation is to replicate the force and time duration of a human footfall so one can reliably rank the acoustical quality of the floor/ceiling system. The most common excitation methods involve
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Effect of floating floor and raised floor on floor impact sound insulation of wooden construction
The Journal of the Acoustical Society of America, 2012The Act on the Promotion Wood for Public building was enforced in October, 2010 in Japan. According to this act, a public building in a low layer assumes a wooden construction as a rule or positively uses wood. Moreover, it is expected that the building such as apartment houses comes to be made from wooden.
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Conversion of floor impact sound levels in apartment buildings
The Journal of the Acoustical Society of America, 2008A procedure to convert the floor impact sound level of the bang machine as well as the tapping machine into that of the impact ball was suggested. Because the bang machine has been the only standard heavy-weight impact source for a long time in Japan and Korea, much of its data is available. The conversion factor of the sound pressure level between the
Pyoung Jik Lee +2 more
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An investigation of floor impact sources and perception models of impact sounds
The Journal of the Acoustical Society of America, 2010The present work compared the physical and psychoacoustical characteristics of standard impact sources with those of human impacts, and proposed the perception models of annoyance for impact sounds with respect to temporal and spatial aspects. Impact ball (heavy/soft impact source) was selected as an appropriate standard floor impact source simulating ...
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Investigation on the flanking transmission of impact sound insulation of floor
The Journal of the Acoustical Society of America, 2004Impact sound pressure level of floors depends, as general rule, on direct sound radiated by the floor excited by a standard tapping machine and on flanking transmission of lateral walls. Depending on the kind of junction between the floor and walls of the receiving room, flanking paths can be more or less important.
Giovanni Semprini, Alessandro Cocchi
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INTER-NOISE and NOISE-CON Congress and Conference Proceedings
This study investigates the impact sound reduction performance of floor coverings used on the heavyweight standard floor of a floating floor structure in comparison with bare slab testbeds through on-site experiments. The laboratory performance evaluation of floor coverings designates only a bare slab between 100 mm and 160 mm as the heavyweight ...
Yong Hee KIM +4 more
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This study investigates the impact sound reduction performance of floor coverings used on the heavyweight standard floor of a floating floor structure in comparison with bare slab testbeds through on-site experiments. The laboratory performance evaluation of floor coverings designates only a bare slab between 100 mm and 160 mm as the heavyweight ...
Yong Hee KIM +4 more
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