Subjective impression of copy machine noises: An examination of physical metrics for the evaluation of sound quality
Subjective impression of copy machine noises: An examination of physical metrics for the evaluation of sound quality
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复印机噪音的主观印象：用于评估声音质量的物理指标的检查
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
H. Fastl
中科院分区：
文献类型：
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作者：
S. Kuwano;S. Namba;O. Takehira;H. Fastl
复印机经常在办公室里使用，那里有很多人在工作，希望它们的噪音不会让人感觉不舒服。通过两个实验考察了不同复印机的主观印象，并寻找合适的物理指标来评估和预测复印机的声音质量。实验一是在日本、德国和美国使用复印机的原声进行的。研究发现，LAEQ的大小对复印机的印象有很大影响。为了找出其他物理参数的影响，实验2使用相同LAeq值的声音进行。实验二是在日本和德国进行的。实验结果表明，LAEQ和清晰度对音质有显著影响，而由LAEQ和清晰度组成的舒适指数CI似乎是一个很好的音质指标。A电子邮件地址：Kuwano@se.eng.osaka-u.ac.jp b电子邮件地址：namba.seiichiro@nifty.com c电子邮件地址：osamu.takhira@nts.ricoh.co.jp d电子邮件地址：as@mmk.e-tech ik.tu-muenchen.de
Copy machines are often used in offices where many people are working and their noises are desired not to be uncomfortable. Two experiments were conducted to examine the subjective impression of various copy machines and to find appropriate physical metrics to evaluate and predict the sound quality of copy machines. Experiment 1 was conducted in Japan, Germany and the U.S. using original sounds of copy machines. It was found that the value of LAeq has a large effect on the impression of copy machines. In order to find the effect of other physical parameters, Experiment 2 was conducted using the sounds with equal value of LAeq. Experiment 2 was conducted in Japan and Germany. It was suggested from the results of both experiments that LAeq and sharpness have a significant effect on sound quality and that CI (comfort index) composed of LAeq and sharpness seems a good index of sound quality. a Email address: kuwano@see.eng.osaka-u.ac.jp b Email address: namba.seiichiro @nifty.com c Email address: osamu.takehira@nts.ricoh.co.jp d Email address: fas@mmk.e-technik.tu-muenchen.de