汽车车窗升降声品质分析与评价  

Analysis and Evaluation of Power Window Sound Quality in Cars

作　　者：赖诗洋 夏小均 徐中明[3] 彭丽惠 Lai Shiyang;Xia Xiaojun;Xu Zhongming;Peng Lihui(Chongqing Vocational Institute of Engineering,Chongqing 402260;National Bus Quality Supervision ＆ Inspection Center,Chongqing 401122;Chongqing Vehicle Test ＆ Research Institute Co.,Ltd.,Chongqing University,Chongqing 400030)

机构地区：[1]重庆工程职业技术学院,重庆402260 [2]重庆车辆检测研究院有限公司,国家客车质量监督检验中心,重庆401122 [3]重庆大学,重庆400030

出　　处：《汽车技术》2018年第7期48-53,共6页Automobile Technology

基　　金：国家自然科学基金项目(51275540); 重庆工程职业技术学院院级科研项目(KJB201712); 重庆市基础与前沿研究计划项目(CSTC2015jcyjBX0075)

摘　　要：以乘用车车窗升、降时的驾驶员处双耳声信号为对象,引入综合评价指标心理声学烦躁度,综合相关性分析和主成分分析方法,提取出影响声品质的关键客观参量。采用参考语义法进行主观评价试验,完成了数据有效性分析,结果表明:主观评价试验结果与客观评价结果一致,影响车窗玻璃升降声主观感受的主要因素为抖动度、双耳响度和尖锐度。研究结果验证了基于心理声学烦躁度进行声品质客观评价与分析方法的正确性。The binaural sound signal of passenger car collected at driver＇s ears during the windows up and down was selected as the object to calculate and analyze its psychoacoustic parameters. The comprehensive evaluation index Psychoacoustic Annoyance（PA） was introduced to extract the key objective parameters that influence the quality of sound samples with the combination of correlation analysis and principal component analysis. Subjective test was carried out via semantic differential method, and validity analysis of the data was completed. The result obtained by subjective test is consistant with the result obtained by objective analysis, which certifies that fluctuation strength, binaural loudness and sharpness are the pivotal metrics to affect subjective perception of window lift sound. The research results prove validity of the sound quality objective evaluation and analysis method based on PA.

关 键 词：车窗升降系统 声品质 心理声学烦躁度 主成分 参考语义细分法 

分 类 号：U461.4[机械工程—车辆工程]