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Convention Paper

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

Authors: Wei, Tong; Sang, Jinqiu; Zheng, Chengshi; Li, Xiaodong

AES Convention 145 · Paper 10123 · October 2018

Abstract

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.

Details

Published in
AES Convention 145
AES Convention
145
Paper number
10123
Publication date
October 6, 2018
Session subject
Spatial Audio
Affiliation
Institute of Acoustics, Chinese Academy of Sciences, Beijing, China (See document for exact affiliation information.)
Type
Convention Paper