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http://dx.doi.org/10.5050/KSNVE.2014.24.4.339

Floor Impact Sound Pressure Level Characteristics by the Change of Reverberation Time in Mock-up Test Rooms  

Jeong, Jeong Ho (Fire Safety & Building Environment System Research Team, Fire Insurers Laboratories of Korea)
Lee, Byung Kwon (Technology Research & Development Institute, DAELIM and Architectural Engineering, Hanyang University)
Yeon, Jun Oh (Korea Institute of Construction Technology)
Jeon, Jin Yong (Architectural Engineering, Hanyang University)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.24, no.4, 2014 , pp. 339-347 More about this Journal
Abstract
Floor impact sound in high-rise apartment building became one of social problems. A lot of civil complaints on floor impact sound occur continuously and the number of disputes between neighbors in small and aged apartment buildings is increasing. Interests on heavy-weight impact sound pressure level measurement and evaluation method is increased. Previous study reported that heavy-weight impact sound level was changed by the sound field condition of receiving reverberation chamber. In this study, heavy-weight impact sound pressure level change by the receiving sound field condition was measured in standard test facility and mock-up test room. These two experimental conditions were designed to simulate averaged living room of common apartment units. By the change of sound absorption power in receiving room, heavy-weight impact sound pressure level in most of frequency bands were changed in standard test facility and mock-up room. Normalized maximum sound pressure level regulated in ISO 16032 showed wider range of heavy/soft impact sound pressure level. Heavy/soft impact sound pressure level change was became smaller by the application of standardized maximum sound pressure level and ISO/CD 10140-3 Amd 2 method. In the case of standardized maximum sound pressure level, absolute sound pressure level changed. From these results, receiving sound field correction method regulated in ISO/CD 10140-3 Amd 2 is needed for the precision measurement and evaluation of heavy-weight impact sound.
Keywords
Sound Field; Floor Impact Sound; Reverberation Time; Room Volume; Correction Method; Heavy/soft Impact Source;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
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