The Journal of the Acoustical Society of Korea (한국음향학회지)

The Acoustical Society of Korea (한국음향학회)
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A Study of the Sound Quality Characteristics for Environmental Noise Assessments Parameters

음질을 고려한 환경소음 평가 인자의 기여도분석에 관한 연구

  • 조경숙 (고등기술연구원 제품기술연구센터 NVH&Design) ;
  • 조연 (고등기술연구원 제품기술연구센터 NVH&Design) ;
  • 황대선 (고등기술연구원 제품기술연구센터 NVH&Design) ;
  • 허덕재 (고등기술연구원 제품기술연구센터 NVH&Design)
  • Published : 2006.04.01
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Abstract

For the environmental noise assessments. A weighted equivalent noise level (LeqA) is used to measure the time varying environmental noise. However, it is not appropriately reflect various environmental noise features and human emotions. The human perception of the noise is affected largely by the psychoacoustic characteristics of noise as well as the sound pressure level In this study, the effective factors of noise qualify are analyzed using the subjective assessment and statistical analysis of environmental noise, such as road traffic noise. construction site noise, noise in daily living. and other. The analysis methodology is composed to three steps as follows : firstly, the values of the sound qualify metrics of various noise sources were analyzed. And to classify the noise sources, we conducted a cluster analysis using sound quality metrics. Secondly, subjective jury testing was carried out using the methods of paired comparisons and semantic differential. Finally, the correlation between the subjective parameters and the noise quality metrics were analyzed. As a result. the human perception characteristics of the various environmental noise are described in some physical parameters of the noise qualify metrics.

소음에 대한 인간의 심리적 인지는 소음의 여러 가지 물리적 요인에 의하여 영향을 받는다. 그러나 현재의 환경소음 평가는 A 가중치 등가 소음 수준을 기준으로 평가되고 있으며 인간의 다양한 감성적 요인을 반영하지 못하고 있다. 따라서 본 연구에서는 환경소음 평가를 위하여 환경소음원 43개에 대하여 주관평가와 통계적 분석방법을 사용하여 인간의 감성에 영향을 주는 음질인자 (Sound quality factor)를 분석하였다. 분석방법은 먼저 다양한 환경소음원에 대한 음질물리량 (Sound quality metrics)을 분석하여 음원을 분류하였으며 분류된 음원의 주된 음질 물리량을 고찰하였다. 그리고 쌍대비교법 (Paired comparisons method)과 어의분별척도법 (Semantic differential method)을 사용하여 주관 평가를 실시하고 음질의 요인을 분석하였으며 물리량과의 관계를 규명하였다. 마지막으로 요인에 대한 물리량의 기여도를 분석함으로써 환경소음의 감성적 인지에 대한 기초 물리량을 설정하였다.

Keywords

References

  1. Joseph sataloff, Robert Thayer Sataloff, Hyman Menduke et al. Hearing loss and Intermittent noise exposure. Journal of Occupational Medicine 1984 26(9) 649-656. Sep
  2. SHELDON COHEN, GARY W. EVANS et al. Physiological. Motivational, and Cognitive Effects of Aircraft Noise on Children. American psychologist. 1980 35(3) 231-243. March https://doi.org/10.1037/0003-066X.35.3.231
  3. S. Namba and S. Kuwano, 'Psychological study on Leq as a measure of loundness of various kinds of noises', J. Acoust. Soc. Jpn. (E) 5 135-148,1984 https://doi.org/10.1250/ast.5.135
  4. H. Fletcher, 'Loudness, pitch and timbre of noise of musical tones and their relations to the intensity, the frequency and the overtone structure', J. Acoust. Soc. Am. 6 59-69, 1934 https://doi.org/10.1121/1.1915704
  5. J.B. Kruskal, 'Nonmetric multidimensional scaling : A numerical method', Psychometrics, 29 115-129, 1964 https://doi.org/10.1007/BF02289694
  6. C. E. Osgood, G. Suci, and P. Tannenbaum, The Measurement of Meaning (University of Illinois Press, Urban, 1957)
  7. Han, M. H., 'A Study on the Psychological Attributes of Noise and its Evaluation', collection of Seonam University, 565-577, 1994
  8. Kim, S.,W, Jang, G., S., Jung, K., Y., Han, M., H, 'A study on the classification of adjectives for psychological evaluation of sounds', The Korean Society for Noise and Vibration Engineering, 3(4) 361-371, 1993
  9. Hur, J. J., Cho,Y., Kim, H., S., Lee, K., S., Bark, T.,W, 'Model Development and Analysis of the Car Interior Sound Quality', Transactions of the Korean Society for Noise and vibration Engineering, 10(2) 254-260, 2000
  10. Research Committee of Sensory Evaluation, Union of Japanese Scientists and Engineers, Sensory Evaluation Handbook, JUSE press,1973
  11. H. A. DAVID, The Method of Paired Comparisons (Oxford university press,1988)
  12. Hur, D. J., etc., 'A Study on Systems Approach to Improve the Sound Quality in the Vehicle Interior', Department of systems engineering Ajou University