摘要
参照国家标准GB15742,对10余辆不同类型的乘用车进行了正前方和右前方30°两个方位的汽车喇叭声学测试。采用主观相似性实验对所得样本进行分类,并按国标进行检验和筛选。最终对6个合格有效的声音样本进行粗糙度、尖锐度、双耳响度和波动度等6个参量的计算,并对这些参量间的相关性和多参量差异进行了分析。结果表明,导致喇叭产生不同声音特点的心理声学因素主要是粗糙度和尖锐度,其次是双耳响度,而波动度差异不明显。
By reference to national standard GB 15742,a car horn acoustic test is conducted on around a dozen cars of different categories along both front ahead and 30° oblique directions.The sound samples obtained from the test are classified with subjective similarity judgments,and then checked and sifted as per the requirements of GB 15742.Finally 6 qualified samples are obtained,of which the parameters including roughness,sharpness,binaural loudness and fluctuation are calculated,and the correlation among these parameters and multi-parameters difference are analyzed.The results indicate that the major psychoacoustic factors making horn generate different sound features are roughness and sharpness with binaural loudness in the next place while the difference in fluctuation is not obvious.
出处
《汽车工程》
EI
CSCD
北大核心
2012年第2期149-153,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
关键词
汽车喇叭
声品质
主观相似性实验
car horn
sound quality
subjective similarity experiment
