Reproduction of a higher-order circular harmonic field using a linear array of loudspeakers.
Reproduction of a higher-order circular harmonic field using a linear array of loudspeakers.
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使用扬声器线性阵列再现高阶圆形谐波场。
DOI：
10.1121/1.4905880
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
Yang
中科院分区：
文献类型：
--
作者：
Jung;Jung;Yang
本文提出了一个直接公式，用于再现由具有极性相位变化的高阶圆谐波组成的声场。具有相位变化的声场可用于合成各种空间属性，例如感知宽度或虚拟声源的位置。为了使用线性扬声器阵列再现这样的声场，以积分公式的形式导出阵列的驱动函数。与关注幅度变化的传统公式相比，所提出的函数显示出更少的再现误差。此外，对最佳听音点的分析表明，其形状可能是不对称的，具体取决于谐波的阶数。
This paper presents a direct formula for reproducing a sound field consisting of higher-order circular harmonics with polar phase variation. Sound fields with phase variation can be used for synthesizing various spatial attributes, such as the perceived width or the location of a virtual sound source. To reproduce such a sound field using a linear loudspeaker array, the driving function of the array is derived in the format of an integral formula. The proposed function shows fewer reproduction errors than a conventional formula focused on magnitude variations. In addition, analysis of the sweet spot reveals that its shape can be asymmetric, depending on the order of harmonics.