汽车关门声品质主客观维度解构及应用研究

通过对关门声品质主观评价维度进行解构,将关门声的主观感知细分为总体响度、厚重感、紧凑感、精致感4个维度,并采用语义细分法结合等级评价法进行关门声品质的主观感知评价。进一步对声品质评价的大量客观参数进行主客观关联性分析,找到了与关门声品质4个感知维度相关性在0.9以上的对应客观量化指标,分别为峰值响度、低频能量、响度特征谱包络和平均尖锐。结合某乘用车关门声品质的优化案例,对提出的主客观评价方法的合理性进行了验证,结果表明,所建立的主客观评价方法,可以全面表达人对关门声品质的主观感知评价,在车门声品质开发过程中能较准确地诊断问题,对汽车关门声品质的评价与开发具有实际指导意义。

The Deconstruction and Application of Subjective and Objective Dimensions in Car Door Closing Sound Quality Research

By deconstructing the subjective evaluation criteria for door closing sound quality, the paper divides the subjective perception of door closing sounds into four dimensions: overall loudness, heaviness,compactness and sophistication. And then the paper uses a combination of the semantic segmentation and the rating evaluation methods to conduct the subjective evaluation of door closing sound quality. Furthermore,the correlation analysis between the subjective and objective evaluations was carried out on a large number of objective parameters and their corresponding objective quantitative indicators. The correlation between the four perceptual dimensions and the following indicators, i. e. the peak loudness, low-frequency energy,loudness characteristic spectrum envelope and average sharpness, exceeds 0.9. Finally, the subjective and objective evaluation method proposed in this paper is verified through optimization of door closing sound quality in a passenger car. The results show that the proposed method effectively captures people''s subjective perception evaluations and enables more accurate diagnosis of issues in the process of car door sound quality development. The paper has practical guiding significance for the evaluation and development of car door closing sound quality.