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The relationship between sound field reproduction and near-field holography

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
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Nelson, Phillip
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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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More information

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

Identifiers

Local EPrints ID: 172341
URI: http://eprints.soton.ac.uk/id/eprint/172341
PURE UUID: 3a324531-488f-4a09-8ecc-4960f290d9a3
ORCID for Filippo Fazi: ORCID iD orcid.org/0000-0003-4129-1433
ORCID for Phillip Nelson: ORCID iD orcid.org/0000-0002-9563-3235

Catalogue record

Date deposited: 25 Jan 2011 14:41
Last modified: 02 Sep 2023 01:41

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