Robust Two-Dimensional Surround Sound Reproduction for Nonuniform Loudspeaker Layouts
Robust Two-Dimensional Surround Sound Reproduction for Nonuniform Loudspeaker Layouts
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适用于非均匀扬声器布局的稳健二维环绕声再现
DOI：
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发表时间：
2007
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影响因子：
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通讯作者：
M. Poletti
中科院分区：
文献类型：
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作者：
M. Poletti
本文研究了扬声器布局不均匀的环绕声系统中的平移函数设计问题。结果表明，存在的理论解是周期函数的非均匀采样的插值。然而，这些解决方案对于远离阵列中心的位置产生大的干扰效应，并且它们对扬声器之间的相位和幅度失配敏感。鲁棒解近似于双互补性质，其中对于每个源角度，权重和平方权重之和为1。一个最小二乘法开发强大的平移功能，产生一个更一致的声场方向性比那些在原点匹配参数。
The design of panning functions for surround sound systems with nonuniform loudspeaker layout is considered. It is shown that theoretical solutions exist which are interpolants for nonuniform sampling of periodic functions. However, these solutions produce large interference effects for positions far from the array center, and they are sensitive to phase and magnitude mismatches between loudspeakers. Robust solutions approximate a double complementarity property in which the weights and squared weights sum to 1 for each source angle. A least-squares method is developed for developing robust panning functions which produces a more consistent sound-field directionality than those produced by matching parameters at the origin.