| 自由声场特性的模拟计算和测量 |
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| 引用本文： | 查雪琴,周小儒,H.V.Fuchs.自由声场特性的模拟计算和测量[J].电声技术,2009,33(11):6-13. |
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| 作者姓名： | 查雪琴 周小儒 H.V.Fuchs |
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| 作者单位： | 德国斯图加特建筑物理研究所 |
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| 摘 要： | 开发了模拟计算室内自由声场的软件，并据此分析影响自由场声学特性的因素，以便在设计过程中掌握和优化。根据计算结果说明，消声室内自由场的特性，是在房间中吸声构件特性和房间特性相互作用的综合结果。分别给出了吸声系数、房间尺寸和声源位置对于自由场的影响。对模拟计算与实际测量结果进行了比较．对自由场测量鉴定中的一些问题作了初步探讨。
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| 关 键 词： | 自由声场 吸声系数 实声源 镜声源 房间尺寸 直达声 反射声 声干涉 |
Computer Simulation and Measurement of Free-field Characteristics |
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| ZHA Xue-qin,ZHOU Xiao-ru,H.V.Fuchs.Computer Simulation and Measurement of Free-field Characteristics[J].Audio Engineering,2009,33(11):6-13. |
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| Authors: | ZHA Xue-qin ZHOU Xiao-ru HVFuchs |
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| Affiliation: | ZHA Xue-qin,ZHOU Xiao-ru,H.V.Fuchs |
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| Abstract: | For analyzing effects which determine the free-field characteristics of a room and furthermore to optimize the design work before and during its construction,a computer simulation program is developed.The quality of a free-field room results from the combined effects of the properties of the acoustic linings and the room geometry.How the sound absorption,room scale and source position affect the free field characteristics are shown.The theoretical approach is verified by a number of comparisons of simulated... |
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| Keywords: | free-field absorption coefficient mirror sources room scale direct sound reflected sound wave interference |
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