The relationship between sound field reproduction and Near-Field Acoustical Holography
The relationship between sound field reproduction and Near-Field Acoustical Holography
The problem of reproducing a desired sound field with an array of loudspeakers and the technique known as Near-Field Acoustical Holography share some fundamental theoretical aspects. It is shown that both problems can be formulated in terms of an integral equation which usually defines an ill-posed problem. The example of spherical geometry is discussed in detail. It is shown that for both the reproduction and the acoustical holography cases, the ill-conditioning of the problem is greatly affected by the distance between the source layer and the measurement/control surface.
1534-1540
Audio Engineering Society
Fazi, Filippo M.
e5aefc08-ab45-47c1-ad69-c3f12d07d807
Nelson, Philip A.
5c6f5cc9-ea52-4fe2-9edf-05d696b0c1a9
4 November 2010
Fazi, Filippo M.
e5aefc08-ab45-47c1-ad69-c3f12d07d807
Nelson, Philip A.
5c6f5cc9-ea52-4fe2-9edf-05d696b0c1a9
Fazi, Filippo M. and Nelson, Philip A.
(2010)
The relationship between sound field reproduction and Near-Field Acoustical Holography.
In 129th Audio Engineering Society Convention 2010.
vol. 2,
Audio Engineering Society.
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
The problem of reproducing a desired sound field with an array of loudspeakers and the technique known as Near-Field Acoustical Holography share some fundamental theoretical aspects. It is shown that both problems can be formulated in terms of an integral equation which usually defines an ill-posed problem. The example of spherical geometry is discussed in detail. It is shown that for both the reproduction and the acoustical holography cases, the ill-conditioning of the problem is greatly affected by the distance between the source layer and the measurement/control surface.
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Published date: 4 November 2010
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Copyright:
Copyright 2012 Elsevier B.V., All rights reserved.
Venue - Dates:
129th Audio Engineering Society Convention 2010, , San Francisco, CA, United States, 2010-11-04 - 2010-11-07
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Local EPrints ID: 468713
URI: http://eprints.soton.ac.uk/id/eprint/468713
PURE UUID: 79f4c8c3-f8de-4cb8-9878-9c618512805d
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Date deposited: 23 Aug 2022 16:56
Last modified: 02 Sep 2023 01:41
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