汽车喇叭声品质主观评价与分析  

Subjective Evaluation and Analysis on Car Horn Sound Quality

作　　者：徐中明[1,2] 张芳[1] 周小林[1] 李传兵 雷应锋 

机构地区：[1]重庆大学,机械传动国家重点实验室,重庆400030 [2]汽车噪声振动和安全国家重点实验室,重庆400039

出　　处：《汽车工程》2013年第2期188-192,共5页Automotive Engineering

基　　金：国家自然科学基金(50975296);汽车噪声振动和安全国家重点实验室2010年度开放基金(NVHSKL-201012)资助

摘　　要：参照国家标准GB 15742,对13辆不同类型乘用车的喇叭进行声学测试,并根据喇叭声样本特点确定了适合喇叭声品质的评价词汇。开发适用于成对比较法的主观评价程序,对22名评价者进行了喇叭声主观偏好性试验,并对试验数据的可靠性和一致性进行了分析。最后计算各样本的主要心理声学客观参量,通过相关和回归分析建立了描述主观评价与客观参量之间相关性的偏好性评价模型。结果表明,主客观偏好性模型呈非线性,人们对喇叭接受和喜爱程度主要受尖锐度和线性声压级,尤其是尖锐度的影响。By reference to GB 15742, horn acoustic tests on thirteen passenger cars of different types are conducted, and the suitable evaluation terms of horn sound quality are determined according to the characteristics of horn sound samples. A subjective evaluation program suiting to paired comparison method is developed, and a test of the subjective preference of horn sound is carried out on 22 participants with the reliability and consistency of test data analyzed. Finally, the main psychoacoustic objective parameters of each sample are calculated, and a prefer- ence evaluation model describing the correlation between subjective preference evaluations and psychoacoustic objec- tive parameters is established with algorithms of linear correlation and multi linear regression. The results indicate that the subjective/objective preference model is nonlinear, and the sharpness and linear sound pressure level, in particular the former, are the key factors affecting the people＇s favor and acceptance of horn sound aualitv.

关 键 词：汽车喇叭 声品质 主观评价 成对比较法 

分 类 号：U463.653[机械工程—车辆工程]