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Near-Field Compensated Higher-Order Ambisonics using a Virtual Source Panning Method

机译:使用虚拟声源平移方法的近场补偿高阶Ambisonics

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The commonly adopted higher order ambisonics (HOA) mainly concentrates on far-field sources and neglects the rendering of near-field sources. Some studies have introduced near-field compensated HOA (NFC-HOA) to preserve the original spherical wave front curvature with lots of loudspeakers. It is worthy to combine the advantages of a physical reproduction approach with a hearing-related model approach to avoid using lots of loudspeakers in regular arrangement. In this paper, an all-around virtual source panning method was proposed to improve driving functions of NFC-HOA with panning functions. In this way, a near-field sound source encoded in HOA can be rendered to arbitrary arrangement of only a few loudspeakers. Both the simulation and experimental results show the validity of the proposed method.
机译:常用的高阶混响(HOA)主要集中在远场源上,而忽略了近场源的渲染。一些研究已经引入了近场补偿HOA(NFC-HOA),以通过许多扬声器来保持原始的球面波前曲率。值得将物理再现方法的优点与与听力有关的模型方法相结合,以免按规则排列使用许多扬声器。本文提出了一种全方位的虚拟源声像平移方法,以改善具有声像平移功能的NFC-HOA的驱动功能。以此方式,可以将以HOA编码的近场声源呈现为仅几个扬声器的任意布置。仿真和实验结果均表明了该方法的有效性。

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