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http://dx.doi.org/10.5050/KSNVE.2012.22.3.234

A Development of Sound Quality Index of an Intake and Exhaust System for High Quality Improvement of Luxury Vehicles  

Lee, Jong-Kyu (현대자동차 남양연구소)
Cho, Teock-Hyeong (현대자동차 남양연구소)
Seo, Dae-Won (현대자동차 남양연구소)
Lim, Yun-Soo (현대자동차 남양연구소)
Won, Kwang-Min (현대자동차 남양연구소)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.22, no.3, 2012 , pp. 234-243 More about this Journal
Abstract
In this paper, a sound quality indices for the evaluation of vehicle intake and exhaust noise were developed through a correlation analysis of objective measurement data and subjective evaluation data. At first, intake and exhaust orifice noise were measured at the wide-open throttle sweep condition. And then, acoustic transfer function between intake orifice noise and interior noise at the steady state condition was measured. Also, acoustic transfer function for exhaust system was measured as the same method. Simultaneously, subjective evaluation was carried out by the paired comparison and semantic differential method by 27 engineers. Next, the correlation analysis between the psycho-acoustic parameters derived from the measured data and the subjective evaluation was performed. The most critical factor was determined and the corresponding sound quality index for the intake and exhaust noise was obtained from the multiple factor regression method. At last, the effectiveness of the proposed index was investigated.
Keywords
Sound Quality Index; Paired Comparison; Semantic Differential; Correlation Analysis; Acoustic Transfer Function;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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