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A method to improve the quality of an audio signal reproduced by a compact loudspeaker array in a private sound zone

Olivieri, Ferdinando, Fazi, Filippo Maria, Shin, Mincheol, Nelson, Philip Arthur, Fontana, Simone and Yue, Lang (2015) A method to improve the quality of an audio signal reproduced by a compact loudspeaker array in a private sound zone At 22nd International Congress on Sound and Vibration (ICSV22), Italy. 12 - 16 Jul 2015.

Record type: Conference or Workshop Item (Other)

Abstract

Private sound zones can be generated using loudspeaker arrays and methods for beamforming. This paper addresses the problem of quality degradation of the reproduced field at the listener’s position, especially in terms of deviation from the desired frequency response. A method is pro- posed that aims to accurately reproduce a desired signal at the listener’s position while minimiz- ing the acoustic energy density in the so-called quiet zones. This method is compared against the Delay-and-Sum beamformer and the Pressure-Matching Method by means of numerical sim- ulations under free-field conditions. Results show that the proposed method allows for accurate reconstruction of the signal at the listener’s position. The effects on the directivity of the array radiation pattern are analyzed and discussed.

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More information

Published date: July 2015
Venue - Dates: 22nd International Congress on Sound and Vibration (ICSV22), Italy, 2015-07-12 - 2015-07-16
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Organisations: Acoustics Group

Identifiers

Local EPrints ID: 379499
URI: http://eprints.soton.ac.uk/id/eprint/379499
PURE UUID: 46e95d56-a4f9-4765-ba50-dfb02ce80541

Catalogue record

Date deposited: 31 Jul 2015 14:13
Last modified: 17 Jul 2017 20:43

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Contributors

Author: Ferdinando Olivieri
Author: Mincheol Shin
Author: Simone Fontana
Author: Lang Yue

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