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.

Authors: Wei, Tong; Sang, Jinqiu; Zheng, Chengshi; Li, Xiaodong
Affiliation: Institute of Acoustics, Chinese Academy of Sciences, Beijing, China
AES Convention: 145 (October 2018) Paper Number: 10123
Publication Date: October 7, 2018 Import into BibTeX
Subject: Spatial Audio
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=19849

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