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Comparison of strategies for accurate reproduction of a target signal with compact arrays of loudspeakers for the generation of zones of private sound and silence

Comparison of strategies for accurate reproduction of a target signal with compact arrays of loudspeakers for the generation of zones of private sound and silence
Comparison of strategies for accurate reproduction of a target signal with compact arrays of loudspeakers for the generation of zones of private sound and silence
Compact loudspeaker arrays driven with input signals designed with the PMM can be used for the reproduction of a target signal in a given control area. This technology may be used for the generation of zones of private sound and zones of silence. In this work, we compare two strategies for the accurate reproduction of a target signal defined with large amplitude variations between the so-called acoustically bright and dark zones. More specifically, we compare the WPMM and a formulation of the PMM with a constraint on the accuracy of the target signal reproduction. Results of simulations and experiments with a linear array prototype show that input signals designed with the WPMM provide better trade-offs between accuracy of the target field reproduction in the so-called bright zone and directivity performance than the other strategy considered.
1549-4950
905-917
Olivieri, Ferdinando
02d11b82-4e34-441f-9e04-60fb117d6617
Fazi, Filippo
e5aefc08-ab45-47c1-ad69-c3f12d07d807
Nelson, Philip
5c6f5cc9-ea52-4fe2-9edf-05d696b0c1a9
Fontana, Simone
12b85430-cb97-4d02-bc8b-024dfecbc1b2
Olivieri, Ferdinando
02d11b82-4e34-441f-9e04-60fb117d6617
Fazi, Filippo
e5aefc08-ab45-47c1-ad69-c3f12d07d807
Nelson, Philip
5c6f5cc9-ea52-4fe2-9edf-05d696b0c1a9
Fontana, Simone
12b85430-cb97-4d02-bc8b-024dfecbc1b2

Olivieri, Ferdinando, Fazi, Filippo, Nelson, Philip and Fontana, Simone (2016) Comparison of strategies for accurate reproduction of a target signal with compact arrays of loudspeakers for the generation of zones of private sound and silence Journal of the Audio Engineering Society, 64, (11), pp. 905-917. (doi:10.17743/jaes.2016.0045).

Record type: Article

Abstract

Compact loudspeaker arrays driven with input signals designed with the PMM can be used for the reproduction of a target signal in a given control area. This technology may be used for the generation of zones of private sound and zones of silence. In this work, we compare two strategies for the accurate reproduction of a target signal defined with large amplitude variations between the so-called acoustically bright and dark zones. More specifically, we compare the WPMM and a formulation of the PMM with a constraint on the accuracy of the target signal reproduction. Results of simulations and experiments with a linear array prototype show that input signals designed with the WPMM provide better trade-offs between accuracy of the target field reproduction in the so-called bright zone and directivity performance than the other strategy considered.

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Accepted/In Press date: 27 July 2016
e-pub ahead of print date: 1 December 2016
Organisations: Acoustics Group

Identifiers

Local EPrints ID: 399439
URI: http://eprints.soton.ac.uk/id/eprint/399439
ISSN: 1549-4950
PURE UUID: 50e584c7-29c2-46b4-b2af-b74211ac3074

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Date deposited: 18 Aug 2016 09:27
Last modified: 09 Jan 2018 17:55

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Contributors

Author: Ferdinando Olivieri
Author: Filippo Fazi
Author: Philip Nelson
Author: Simone Fontana

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