| Zwicker时变响度的一种计算方法 |
| |
| 引用本文： | 周明刚,董琦飞,刘阳,陈源. Zwicker时变响度的一种计算方法[J]. 中国机械工程, 2014, 25(22): 3073-3076 |
| |
| 作者姓名： | 周明刚 董琦飞 刘阳 陈源 |
| |
| 作者单位： | 湖北工业大学,武汉,430068 |
| |
| 基金项目： | 国家自然科学基金资助项目(50975081)；湖北省自然科学基金资助项目 |
| |
| 摘 要： | 根据德国标准DIN 45631/A1,在Zwicker稳态响度模型的基础上,模拟了频域和时域掩蔽效应，通过引入一个时间常量来描述响度的动态行为,设计并基于MATLAB实现了Zwicker时变响度的计算算法。选用国内某汽车持续加速时的噪声样本为算例进行计算,计算结果与B&K公司的声品质软件Sound Quality的计算结果具有良好的一致性,从而验证了该时变噪声响度计算方法的准确性。
|
| 关 键 词： | 声品质 响度 掩蔽效应 时变响度 |
A Calculation Method of Zwicker Time-varying Loudness |
| |
| Zhou Minggang,Dong Qifei,Liu Yang,Chen Yuan. A Calculation Method of Zwicker Time-varying Loudness[J]. China Mechanical Engineering, 2014, 25(22): 3073-3076 |
| |
| Authors: | Zhou Minggang Dong Qifei Liu Yang Chen Yuan |
| |
| Affiliation: | Hubei University of Technology,Wuhan,430068 |
| |
| Abstract: | According to the German standard DIN 45631/A1, the frequency domain and temporal masking effect were simulated on the basis of the model of Zwicker steady-state loudness, the algorithms of Zwicker time-varying loudness were designed and implemented based on MATLAB. A time constant was introduced to describe the dynamic behavior of loudness. The noise sample of a domestic car was chosen to calculate loudness during acceleration, the calculation results were compared with the calculation ones by B&K sound quality software. The comparison results show favorable consistency, thus the method of calculating loudness of the time-varying noise is validated. |
| |
| Keywords: | sound quality loudness masking effect time-varying loudness |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《中国机械工程》浏览原始摘要信息 |
|
点击此处可从《中国机械工程》下载全文 |
|
