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3D Exterior Soundfield Reproduction Using a Planar Loudspeaker Array | IEEE Conference Publication | IEEE Xplore

3D Exterior Soundfield Reproduction Using a Planar Loudspeaker Array


Abstract:

In this paper, we propose a planar array of dipole (or first-order) loudspeakers to reproduce a full three dimensional (3D) exterior soundfield over a desired spatial reg...Show More

Abstract:

In this paper, we propose a planar array of dipole (or first-order) loudspeakers to reproduce a full three dimensional (3D) exterior soundfield over a desired spatial region. The proposed method is inspired by the spherical harmonics based solution for 3D soundfield reproduction. When decomposed in terms of spherical harmonics, we separate the corresponding soundfield coefficients into two sets (even and odd) and exploit the inherent properties of Legendre polynomials to control each set using a planar array of dipole (or first-order) speakers. We provide simulation examples to demonstrate the performance of the proposed method.
Date of Conference: 15-20 April 2018
Date Added to IEEE Xplore: 13 September 2018
ISBN Information:
Electronic ISSN: 2379-190X
Conference Location: Calgary, AB, Canada

1. Introduction

Three dimensional soundfield reproduction is a well researched topic due to its plethora of applications such as home-theatre systems, in-car audio systems, communication devices, and noise cancellation. There exists a number of soundfield reproduction methods such as amplitude panning [1]–[4], wavefield synthesis [5]–[8], Ambisonics [9], [10], and higher-order Ambisonics (HOA) [11]–[14].

References

References is not available for this document.