Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Analysis of Subjective Sound Quality Characteristics for the HVAC System using the Design of Experiments

실험계획법을 이용한 차량 공조시스템의 음질 특성 분석

  • 오재응 (한양대학교 기계공학부) ;
  • 윤태건 (한양대학교 대학원 자동차공학과) ;
  • 아미누딘 빈 아부 (한양대학교 대학원 자동차공학과) ;
  • 심현진 (한양대학교 대학원 자동차공학과) ;
  • 이정윤 (경기대학교 기계시스템디자인공학부) ;
  • 김성수 (현대모비스 응용기술연구부)
  • Published : 2005.11.01
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Abstract

Since human listening is very sensitive when the sound hit him, the subjective index of sound quality is required. Therefore, at each situation of sound evaluation its composed with the sound quality factor. But, when substituting the level of one frequency band we could not see the tendency of substitution at whole frequency band during the sound quality evaluation. In this study a design of experiment is used. The frequency domain is divided into an equally 12 parts and each level of domain whether is given increase or decrease due to the change of frequency band based on 'sharp' and 'annoy' of the sound quality is analyzed. By using the design of experiment the number of test is reduce very effectively by the number of experiment and each band the main effect will be as a solution. The case of sound quality for 'sharp' and 'annoy' at each band, the change of band (increase or decrease of sound pressure or keep maintain) which will be the most effects on the characteristics of sound quality can be identify and this will be able to us to select the objective frequency band. Through these obtained results the physical changes of level at arbitrary frequency domain sensitivity can be adapted.

Keywords

References

  1. Park, D. C., Jung, S, G., 'Study of sound quality improvement for the vehicle,' Journal of the KSNVE, Vol. 12, No. 5, pp. 517-521, 2002
  2. Zwicker, E., Fastl, H., 'Psychoacoustics : Facts and Models,' Springer 2nd Edition, 1999
  3. Lee, S. K., Chae, H. C., Park, D. C. and Jung, S. G., 'Sound Quality Index Development for Booming Noise of Automotive Sound Using Artificial Neural Network Information Theory,' Sound Quality Symposium. Dearbon, 2000
  4. Takeo, Hashimoto, 'Sound Quality Study and its Application to Car Interior and Exterior Noise,' KSNVE Spring Annual Conference, pp. 19-26,2001
  5. Kim, M. E., Lee, D. H., 'Analysis and Improvement of Interior Noise in a Passenger Car Using Taguchi Orthogonal Array,' Journal of the KSNVE, Vol. 9, No. 5, pp. 998-1004, 1999
  6. Oh, J. E., Hwang, D. K., Aminudin bin Abu, Lee, J. Y., Kim, S. S., 'Coherent Analysis of HVAC Using the Multi-Dimensional Spectral Analysis,' Journal of KSPE, Vol. 22, No. 8, pp. 143-150, 2004
  7. Park, S. H., 'Modem Design of Experiments,' Minyoungsa, 2003
  8. Park, H. K., Kim, J. T., 'Evaluation of Door Closing Sound by Using Semantic Difference Method,' Journal of the KSAE, Vol. 6, No. 2, pp. 67-79, 1998
  9. Hur, D. J., Cho, Y., Kim, H. S., Lee, G. S. and Park, T. W, 'Model Development and Analysis of the Car Interior Sound Quality,' Journal of the KSNVE, Vol. 10, No. 2, pp. 254-260, 2000
  10. Bendat, J. S. and Piersol, G., 'Engineering Application of Correlation and Spectral Analysis,' John Wiley & Sons, Inc. 2nd Edition, Elsevier Science Ltd., 1993
  11. Lee, Y. M., Choi, B. H., Song, T. S., Kim, S. I., Lee, D. S., 'Prediction of Cutting Force using Neural Network and Design of Experiments,' KSPE Fall Annual Conference, 1997