Journal of the Institute of Electronics Engineers of Korea SP (대한전자공학회논문지SP)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Objective Assessment Model for Refrigerator Noises

냉장고 소음의 객관적 평가 모델

  • Park, Jong-Geun (Dept. of Electrical and Electronic Engineering, Yonsei University) ;
  • Cho, Youn (Institute for Advanced Engineering, Center for Strategic Research, Team for Mechatronics) ;
  • Lee, Sang-Wook (Dept. of Electrical and Electronic Engineering, Yonsei University) ;
  • Hwang, Dae-Sun (Institute for Advanced Engineering, Center for Strategic Research, Team for Mechatronics) ;
  • Lee, Chul-Hee (Dept. of Electrical and Electronic Engineering, Yonsei University)
  • 박종근 (연세대학교 전기전자공학과) ;
  • 조연 (고등기술연구원 전략연구센터 메카트로닉스팀) ;
  • 이상욱 (연세대학교 전기전자공학과) ;
  • 황대선 (고등기술연구원 전략연구센터 메카트로닉스팀) ;
  • 이철희 (연세대학교 전기전자공학과)
  • Published : 2009.09.25
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Abstract

This paper presents objective methods which predict perceptual noise levels caused by refrigerators. Eight home refrigerators are chosen and their noises are recorded in an anechoic-chamber and a real-life apartment. In order to obtain perceptual noise levels of the refrigerators, subjective quality assessment tests were performed by 100 evaluators Then, we compute 5 sound quality metrics (SQM) which reflect psychoacoustics characteristics. Finally, objective assessment model for refrigerator noises is developed by linear combination of SQMs.

본 논문에서는 냉장고로부터 방사되는 소음에 대한 사용자의 불쾌도를 객관적으로 평가하기 위한 방법을 제안하였다. 이를 위해 8개의 상용 냉장고로부터 방사되는 소음이 무향실과 아파트로부터 녹음되었다. 사용자가 냉장고 소음으로부터 느끼는 주관적 청감을 알아보기 위하여 100명의 평가자로부터 청감 실험을 통하여 각 냉장고 소음의 주관적 평가 데이터가 얻어졌다. 그리고 이로부터 심리 음향 속성을 나타내는 파라미터인 5개의 Sound Quality Metric (SQM) 도출하였다. 마지막으로 주관적 소음 평가 데이터와 5개의 객관적 SQM 값 사이에 높은 상관도를 부여하는 냉장고 소음에 대한 객관적 평가 모델이 제시된다.

Keywords

References

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