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Design array of loudspeakers for personal audio system in a car cabin

Design array of loudspeakers for personal audio system in a car cabin
Design array of loudspeakers for personal audio system in a car cabin
With an increasing interest in personal audio systems, the car cabin is regarded as an interesting environment for generating clearly audible sound in one “bright” zone without disturbing people in another “dark” zone. Two algorithms, acoustical contrast control and least squares method, are applied for producing two independent listening zones, one zone including the front passengers and the other one including the rear passengers. The generation of an acceptable level of acoustical contrast between the two zones, using an array of four standard car audio loudspeakers, is limited to relatively low frequencies. In order to increase the frequency range of acoustical contrast and achieve better control performance, an array of loudspeakers on the roof of the car is investigated in this paper. In particular, a selection process for the configuration of the source array is described. Free field simulations are used to calculate the responses of the source array and investigate the performance of two control algorithms. A practical implementation is also planned.
Liao, Xiangning
5a6a47ff-7cab-4dc2-a0c9-f0684969c4fb
Elliott, Stephen
721dc55c-8c3e-4895-b9c4-82f62abd3567
Cheer, Jordan
8e452f50-4c7d-4d4e-913a-34015e99b9dc
Liao, Xiangning
5a6a47ff-7cab-4dc2-a0c9-f0684969c4fb
Elliott, Stephen
721dc55c-8c3e-4895-b9c4-82f62abd3567
Cheer, Jordan
8e452f50-4c7d-4d4e-913a-34015e99b9dc

Liao, Xiangning, Elliott, Stephen and Cheer, Jordan (2016) Design array of loudspeakers for personal audio system in a car cabin. 23rd International Congress on Sound & Vibration, Greece. 09 - 13 Jul 2016. 8 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

With an increasing interest in personal audio systems, the car cabin is regarded as an interesting environment for generating clearly audible sound in one “bright” zone without disturbing people in another “dark” zone. Two algorithms, acoustical contrast control and least squares method, are applied for producing two independent listening zones, one zone including the front passengers and the other one including the rear passengers. The generation of an acceptable level of acoustical contrast between the two zones, using an array of four standard car audio loudspeakers, is limited to relatively low frequencies. In order to increase the frequency range of acoustical contrast and achieve better control performance, an array of loudspeakers on the roof of the car is investigated in this paper. In particular, a selection process for the configuration of the source array is described. Free field simulations are used to calculate the responses of the source array and investigate the performance of two control algorithms. A practical implementation is also planned.

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More information

e-pub ahead of print date: 14 July 2016
Published date: 14 July 2016
Venue - Dates: 23rd International Congress on Sound & Vibration, Greece, 2016-07-09 - 2016-07-13
Related URLs:
Organisations: Signal Processing & Control Grp

Identifiers

Local EPrints ID: 398450
URI: http://eprints.soton.ac.uk/id/eprint/398450
PURE UUID: a9654b05-235d-462b-8ad0-f95270565dee
ORCID for Jordan Cheer: ORCID iD orcid.org/0000-0002-0552-5506

Catalogue record

Date deposited: 26 Jul 2016 10:45
Last modified: 07 Oct 2020 01:58

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