汽车声品质评价方法的研究及其软件评价平台的搭建.pdf

汽车声品质评价方法研究及软件评价平台的搭建摘要汽车声品质是汽车NVH研究的一部分。声品质评价是汽车声品质好坏的检测手段,也为汽车声品质的改进指明方向。本文详细介绍了汽车声品质的研究对象及其特点、研究方法和国内外的研究近况,并对汽车声品质的评价方法进行了全面总结,详细介绍了声品质主观评价方法、各类客观评价参量的含义和计算方法。使用成对比较法对多种车型的车门关闭声进行了主观偏好性评价实验。对各声音样本进行客观分析,并将主观评价结果和与之相关性很强的心理声学参数进行了多元统计分析,得到了回归方程。结合车门的结构和车门关闭声的产生机制,分析了车门关闭声的声音特性和可能导致产生不好声音品质的结构原因,并提出了合理化建议。对现行的声音样本采集方法进行整理,提出了车门关闭声音样本的采集方法和流程。初步建立声音样本管理数据库,并建成了特征声音样本库和车门关闭声样本库,实现了对声音样本的有效管理,为更加深入的研究打下了良好的基础。对现有的声品质主观评价平台进行分析和评价的同时,提出了建立声品质客观评价平台的构想。关键词: 声品质;客观评价;主观评价;汽车车门;评价平台 Vehicle Sound Quality EValuation Method Research and the DeVelopment ofSoftware System ABSTRACT Vehicle sound quality is part of Vehicle NVH research. Sound quality evaluation is not only the examining measurement for Vehicle sound,but also shows how toimprove the Vehicle sound quality. This paper introduces the Vehicle sound quality characteristics, study methods and recent research athome and sound quality evaluation methods,both theobj ectiVe method and thesubj ective method,are described in a sweeping objectiVe eValuation parameters ofeach category are introduced indetail,including theirmeanings and calculation methods. The leR抒ont door closing sounds锄pIes inthe缸Ve le缸andri出ears’of kinds carS were selected aSeValuation method is印plied forthesu功ective preference research thecharacteristic ofthesounds锄ples which getlli曲 preference degree in thesubjective evaluation test, calculate main psychoacoustic parameters a11danalysis merelationShipbe铆een psychoacoustic parameters alldsubjective thedoor closing soundch蹦lcteristics wllich may leadp00r sound bining thedoor s打ucture allddoor closing sound generation mechanism,a11d 西Ve reasonable suggeStions. Propose door closing sound sample collection methods and processes. Establish sound samples management database,including sound sample feature library and door closing sound sanlple library,to realize the effective management ofthe sound samples and make the foundation fo