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Comparison between Subjective Evaluation Results of Frequency Component Varied Rubber Impact Sound and Single Numerical Quantities

주파수 변화된 고무공 충격음 청감실험 결과와 단일 수치 평가량 비교

Jeong-Ho Jeong1*
정 정호1*
1Fire Safety & Building Environment System Research Team, Fire Insurers Laboratories of Korea
1방재시험연구원 화재환경시스템팀
*교신저자. *Corresponding Author. 
December 2017. pp. 517-526
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Abstract

Floor impact sound is one of the most annoying noise sources in multi-story residential building. People usually do not wear shoes in a floor-heated house, in such cases children’s running, jumping and adult walking generate low frequency impact sound. In order to simulate and test low frequency impact sound in multi-story residential buildings, heavy/soft impact source (rubber all) was standardized in ISO 10140-3, 5 and ISO 16283-2. However there is no single number quantity (SNQ) to evaluate rubber ball impact sound. For the proposition of SNQ on rubber ball impact sound several subject tests were conducted. The most of subjective test focused on level variation. In this study, frequency component of rubber ball and real impact sound, which were recorded in typical Korean residential building, were varied and presented to the subjects using headphone. Subjective loudness were evaluated and compared with several SNQ such as A-weighted maximum impact sound pressure level (LA,F,Max), arithmetic mean level (LiF,avg,Max) and inverse A-weighted maximum impact sound pressure level (LA,F,Max). It was found that LiF,avg,Max and LA,F,Max show higher relationship than other SNQs.

Keywords
Single number quantity
Floor impact sound
Rubber ball impact sound
Subjective evaluation

키워드
단일 수치 평가량
바닥충격음
고무공 충격음
청감실험
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Information
  • Publisher :Korean Institute of Architectural Sustainable Environment and Building Systems
  • Publisher(Ko) :한국건축친환경설비학회
  • Journal Title :Journal of Korean Institute of Architectural Sustainable Environment and Building Systems
  • Journal Title(Ko) :한국건축친환경설비학회논문집
  • Volume : 11
  • No :6
  • Pages :517-526
  • Received Date : 2017-10-20
  • Revised Date : 2017-12-14
  • Accepted Date : 2017-12-09
  • DOI :https://doi.org/10.12972/jkiaebs.20170021
Journal Informaiton Journal of Korean Institute of Architectural Sustainable Environment and Building Systems Journal of Korean Institute of Architectural Sustainable Environment and Building Systems
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