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Crosstalk cancellation and equalisation for headrest sound reproduction

Crosstalk cancellation and equalisation for headrest sound reproduction
Crosstalk cancellation and equalisation for headrest sound reproduction
Loudspeakers mounted in the headrest of a seat could potentially be used for spatial sound reproduction in a number of applications. The natural cross-talk cancellation is found to be large in such an arrangement but the response from the loudspeakers to the closest ear depends strongly on the position of the head. In order to improve the reproduction of spatial audio with such a system, various methods of cross-talk cancellation and equalisation have been investigated. An averaged cross-talk cancellation system is introduced that minimises the reproduction error over a number of closely spaced positions, which causes less degradation of the performance away from the assumed head location than exact crosstalk cancellation at one point in space. This is found not to be necessary in this application, however, and a simpler system has been implemented that changes the overall gain of the signals driving the loudspeakers to compensate for the effect of the head position, as measured by a head tracker.
Elliott, Stephen
721dc55c-8c3e-4895-b9c4-82f62abd3567
House, Charles
15d5f04a-da71-4435-9b8c-6bf50d8e7908
Cheer, Jordan
8e452f50-4c7d-4d4e-913a-34015e99b9dc
Simon Galvez, Marcos
777da25f-86fc-4a22-8ff1-ac2cbbfe27ae
Elliott, Stephen
721dc55c-8c3e-4895-b9c4-82f62abd3567
House, Charles
15d5f04a-da71-4435-9b8c-6bf50d8e7908
Cheer, Jordan
8e452f50-4c7d-4d4e-913a-34015e99b9dc
Simon Galvez, Marcos
777da25f-86fc-4a22-8ff1-ac2cbbfe27ae

Elliott, Stephen, House, Charles, Cheer, Jordan and Simon Galvez, Marcos (2016) Crosstalk cancellation and equalisation for headrest sound reproduction. 2016 AES International Conference on Sound Field Control, Guildford, United Kingdom. 18 - 20 Jul 2016. 6 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

Loudspeakers mounted in the headrest of a seat could potentially be used for spatial sound reproduction in a number of applications. The natural cross-talk cancellation is found to be large in such an arrangement but the response from the loudspeakers to the closest ear depends strongly on the position of the head. In order to improve the reproduction of spatial audio with such a system, various methods of cross-talk cancellation and equalisation have been investigated. An averaged cross-talk cancellation system is introduced that minimises the reproduction error over a number of closely spaced positions, which causes less degradation of the performance away from the assumed head location than exact crosstalk cancellation at one point in space. This is found not to be necessary in this application, however, and a simpler system has been implemented that changes the overall gain of the signals driving the loudspeakers to compensate for the effect of the head position, as measured by a head tracker.

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More information

e-pub ahead of print date: 18 July 2016
Published date: July 2016
Venue - Dates: 2016 AES International Conference on Sound Field Control, Guildford, United Kingdom, 2016-07-18 - 2016-07-20
Organisations: Signal Processing & Control Grp

Identifiers

Local EPrints ID: 398551
URI: http://eprints.soton.ac.uk/id/eprint/398551
PURE UUID: 4b10efc6-90c6-42ad-8750-1c5d76e4f9ac
ORCID for Charles House: ORCID iD orcid.org/0000-0002-9653-3594
ORCID for Jordan Cheer: ORCID iD orcid.org/0000-0002-0552-5506

Catalogue record

Date deposited: 29 Jul 2016 10:53
Last modified: 17 Dec 2019 01:40

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