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Design and implementation of a car cabin personal audio system

Design and implementation of a car cabin personal audio system
Design and implementation of a car cabin personal audio system
With the individual requirements of different occupants and the proliferation of audio sources in the automobile, there is an interest in implementing independent front and rear listening zones to match the preferences of the occupants. Because simulations showed the physical limits for creating personal listening zones, low- and high-frequencies arrays were considered separately. Four standard audio loudspeakers were used for frequencies below 200 Hz, and phase-shift loudspeaker arrays mounted at the headrests were used for frequencies above 200 Hz. The split-band technique avoids the need for full-bandwidth loudspeakers in the headrests. To validate the results a personal audio system was implemented in an automobile cabin using the dual arrays; performance was consistent with the simulations. A contrast of 15 dB between bright and dark seats was possible.
1549-4950
412-424
Cheer, Jordan
8e452f50-4c7d-4d4e-913a-34015e99b9dc
Elliott, Stephen J.
721dc55c-8c3e-4895-b9c4-82f62abd3567
Simon Galvez, Marcos F.
777da25f-86fc-4a22-8ff1-ac2cbbfe27ae
Cheer, Jordan
8e452f50-4c7d-4d4e-913a-34015e99b9dc
Elliott, Stephen J.
721dc55c-8c3e-4895-b9c4-82f62abd3567
Simon Galvez, Marcos F.
777da25f-86fc-4a22-8ff1-ac2cbbfe27ae

Cheer, Jordan, Elliott, Stephen J. and Simon Galvez, Marcos F. (2013) Design and implementation of a car cabin personal audio system. Journal of the Audio Engineering Society, 61 (6), 412-424.

Record type: Article

Abstract

With the individual requirements of different occupants and the proliferation of audio sources in the automobile, there is an interest in implementing independent front and rear listening zones to match the preferences of the occupants. Because simulations showed the physical limits for creating personal listening zones, low- and high-frequencies arrays were considered separately. Four standard audio loudspeakers were used for frequencies below 200 Hz, and phase-shift loudspeaker arrays mounted at the headrests were used for frequencies above 200 Hz. The split-band technique avoids the need for full-bandwidth loudspeakers in the headrests. To validate the results a personal audio system was implemented in an automobile cabin using the dual arrays; performance was consistent with the simulations. A contrast of 15 dB between bright and dark seats was possible.

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More information

Published date: 8 July 2013
Organisations: Signal Processing & Control Grp

Identifiers

Local EPrints ID: 354606
URI: http://eprints.soton.ac.uk/id/eprint/354606
ISSN: 1549-4950
PURE UUID: 275fad92-3aa9-4117-b5d1-8d335df7dda9
ORCID for Jordan Cheer: ORCID iD orcid.org/0000-0002-0552-5506

Catalogue record

Date deposited: 15 Jul 2013 13:25
Last modified: 17 Dec 2019 01:40

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