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Reproduction of different soundfields simultaneously at multiple spatial regions is a complex problem in acoustic signal processing. In this paper, we present a framework to recreate 2D soundfields simultaneously at multiple spatial regions using a single loudspeakers array. We propose a novel method of finding an equivalent global soundfield which consists of each individual desired soundfields by the spatial harmonic coefficients translation between the coordinate systems. This method makes full use of the available dimensionality of the soundfield. Some fundamental limits are also revealed. Specifically, the number of spatial regions could be reproduced inside the single loudspeaker array is determined by the total dimensionality from each soundfield.
Author (s): Wu, Yan Jennifer;
Abhayapala, Thushara D.;
Affiliation:
The Australian National University, Canberra, Australia
(See document for exact affiliation information.)
AES Convention: 128
Paper Number:7967
Publication Date:
2010-05-06
Session subject:
Sound Reinforcement and Room Acoustics
DOI:
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Wu, Yan Jennifer; Abhayapala, Thushara D.; 2010; Simultaneous Soundfield Reproduction at Multiple Spatial Regions [PDF]; The Australian National University, Canberra, Australia; Paper 7967; Available from: https://aes.org/publications/elibrary-page/?id=15264
Wu, Yan Jennifer; Abhayapala, Thushara D.; Simultaneous Soundfield Reproduction at Multiple Spatial Regions [PDF]; The Australian National University, Canberra, Australia; Paper 7967; 2010 Available: https://aes.org/publications/elibrary-page/?id=15264
@inproceedings{Wu2010simultaneous,
title={{Simultaneous Soundfield Reproduction at Multiple Spatial Regions}},
author={Wu, Yan Jennifer and Abhayapala, Thushara D.},
year={2010},
month={may},
booktitle={Journal of the Audio Engineering Society},
publisher={Paper 7967; AES Convention 128; May 2010},
number={7967},
organization={AES},
}
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