The relationship between sound field reproduction and near-field holography
The relationship between sound field reproduction and near-field 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.
Fazi, Filippo
e5aefc08-ab45-47c1-ad69-c3f12d07d807
Nelson, Phillip
5c6f5cc9-ea52-4fe2-9edf-05d696b0c1a9
November 2010
Fazi, Filippo
e5aefc08-ab45-47c1-ad69-c3f12d07d807
Nelson, Phillip
5c6f5cc9-ea52-4fe2-9edf-05d696b0c1a9
Fazi, Filippo and Nelson, Phillip
(2010)
The relationship between sound field reproduction and near-field holography.
129th Convention of the Audio Engineering Society, San Francisco, United States.
04 - 07 Nov 2010.
7 pp
.
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: November 2010
Additional Information:
Paper No.8247
Venue - Dates:
129th Convention of the Audio Engineering Society, San Francisco, United States, 2010-11-04 - 2010-11-07
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Local EPrints ID: 172341
URI: http://eprints.soton.ac.uk/id/eprint/172341
PURE UUID: 3a324531-488f-4a09-8ecc-4960f290d9a3
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Date deposited: 25 Jan 2011 14:41
Last modified: 02 Sep 2023 01:41
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