关键词: 声学, 声品质, FCV, 低频噪声, 主观评价, 客观评价

Abstract: 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 lowpass 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 lowfrequency 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.

Key words: acoustics, sound quality, FCV, low frequency noise, subjective evaluation, objective evaluation