Objective evaluation of door-closing sound quality based on physiological acoustics

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• 作者：T. J. Shin (1)
  D. C. Park (2)
  S. K. Lee (1)
  
• 关键词：Sound quality ; Door closing sound ; Gamma function ; Kurtosis ; Physiological acoustics
• 刊名：International Journal of Automotive Technology
• 出版年：2013
• 出版时间：February 2013
• 年：2013
• 卷：14
• 期：1
• 页码：133-141
• 全文大小：1000KB
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• 作者单位：T. J. Shin (1)
  D. C. Park (2)
  S. K. Lee (1)
  
  1. Department of Mechanical Engineering, Inha University, Incheon, 402-751, Korea
  2. NVH Research Fellow, Hyundai Motor Company R&D Division, Hwaseong-si, Gyeonggi, 445-706, Korea
  
• ISSN：1976-3832

文摘

This paper presents a new method to objectively quantify the sound quality of doors closing in premium passenger cars. In previous works, psychoacoustic parameters have been used for objective quantification. However, these parameters do not agree well with subsequent subjective assessments. Therefore, the correlation between the psychoacoustic parameters and the subjective rating of door closing sounds in sampled cars is low, and it is not sufficient to use psychoacoustic parameters as an objective metric to quantify the quality of door-closing sounds. In this paper, a new method is proposed to objectively quantify the sound quality based on physiological acoustics and statistical signal processing. A gammatone filter is used as a pre-processing method in models of the auditory system and kurtosis, which is the fourth-order moment of the temporal signal and is used to extract quantitative information about the quality of door-closing sounds. The new metric obtained from the proposed method is highly correlated to subjective ratings and has been successfully applied to the quantification of door-closing sound quality.