Reproduction of a plane-wave sound field using an array of loudspeakers
Reproduction of a plane-wave sound field using an array of loudspeakers
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DOI：
10.1109/89.943347
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发表时间：
2001-09
期刊：
影响因子：
--
通讯作者：
D. Ward;T. Abhayapala
中科院分区：
文献类型：
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作者：
D. Ward;T. Abhayapala
声场的再现是声信号处理中的一个基本问题。在本文中，我们使用球谐函数分析，以获得性能界限如何以及扬声器阵列可以重新创建一个三维（3-D）平面波声场内的球形空间区域。具体来说，我们开发的扬声器的数量，再现球的大小，频率范围和所需的精度之间的关系。我们还提供了类似的结果的特殊情况下，再现的二维（2-D）声场。通过计算机模拟验证了结果。
Reproduction of a sound field is a fundamental problem in acoustic signal processing. In this paper, we use a spherical harmonics analysis to derive performance bounds on how well an array of loudspeakers can recreate a three-dimensional (3-D) plane-wave sound field within a spherical region of space. Specifically, we develop a relationship between the number of loudspeakers, the size of the reproduction sphere, the frequency range, and the desired accuracy. We also provide analogous results for the special case of reproduction of a two-dimensional (2-D) sound field. Results are verified through computer simulations.