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《Analysis of Sound Quality of Lowfrequency Noise for Fuel Cell Vehicles》
HE Rong;ZUO Shu-guang;SHEN Xiu-min;ZHANG Jiang-fen
2010, 30 (3):
97-99.
DOI: 10.3969/j.issn.1006-355.2010.03.026
The internal and external noises of a fuel cell vehicle (FCV) are collected. Considering that low frequency noise occupies a large amount of energy, the noise signals in the range from 20Hz to 150Hz are extracted through the lowpass filter. Then, based on Zwicker model, the objective evaluation index is calculated. The score of subjective evaluation of the noise sample is given by means of the paired comparison method. Finally, the multiple linear regression model for lowfrequency sound quality analysis is established according to the linear correlation between subjective score and objective index, in order to get more accurate evaluation of sound quality of FCV noise in low frequency range.
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