Analysis of Loudspeaker Line Arrays
Analysis of Loudspeaker Line Arrays
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扬声器线阵列分析
DOI：
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
Mark S. Ureda
中科院分区：
文献类型：
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作者：
Mark S. Ureda
给出了一组用于分析扬声器线阵性能的数学表达式。首先建立了直线阵的方向性函数、极点响应、1/4功角、轴上和离轴压力响应以及二维压力场的表达式。由于在实践中许多扬声器线阵实际上并不是直的，因此提供了曲线(圆弧)、J和渐进式线阵的表达式。此外，由于扬声器系统往往不是完美的声源，因此分析了球形辐射源和声源间隙对声学特性的影响。给出了几个如何应用模型的例子，并将建模的性能与测量的极点数据进行了比较。
A set of mathematical expressions to analyze the performance of loudspeaker line arrays is provided. At first a set of expressions for straight-line arrays is developed, including the directivity function, polar response, quarter-power angle, on-axis and off-axis pressure responses, and two-dimensional pressure field. Since in practice many loudspeaker line arrays are not actually straight, expressions are provided for curved (arc), J, and progressive line arrays. In addition, since loudspeaker systems are often not perfect sources, the effects of spherical radiating sources and gaps between sources are analyzed. Several examples of how to apply the models are given, and modeled performance is compared to measured polar data.