Head tracking for local active noise control
Head tracking for local active noise control
The spatial extent of the cancellation that can be achieved with a local active sound control system is limited, particularly at frequencies above about 300 Hz, so that control of the pressure at fixed points in space does not give satisfactory performance as the listener’s head moves about, unless the position of the head can be tracked. The availability of low-cost head tracking systems for gaming applications opens up the possibility of such a head tracking active control system at a modest cost. In the experiments reported here, such a system was used to track the head position in a local active sound controller, implemented in a headrest. The positions of the listener’s ears were calculated from the head position. This was used in lookup tables to estimate both the responses from the secondary sources to the remote microphone positions at the ear, and also the weightings on an array of monitoring microphones mounted on the headrest, used to estimate the pressures at these remote microphone positions, using an observer. These estimates were then used to adapt the two control filters driving the secondary sources.
Elliott, Stephen
721dc55c-8c3e-4895-b9c4-82f62abd3567
Simon, Marcos
777da25f-86fc-4a22-8ff1-ac2cbbfe27ae
Cheer, Jordan
8e452f50-4c7d-4d4e-913a-34015e99b9dc
Jung, Woomin
d8734210-d7b3-48dc-ace0-3724cd864f37
6 December 2015
Elliott, Stephen
721dc55c-8c3e-4895-b9c4-82f62abd3567
Simon, Marcos
777da25f-86fc-4a22-8ff1-ac2cbbfe27ae
Cheer, Jordan
8e452f50-4c7d-4d4e-913a-34015e99b9dc
Jung, Woomin
d8734210-d7b3-48dc-ace0-3724cd864f37
Elliott, Stephen, Simon, Marcos, Cheer, Jordan and Jung, Woomin
(2015)
Head tracking for local active noise control.
12th Western Pacific Acoustics Conference, Singapore.
06 - 10 Dec 2015.
5 pp
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
The spatial extent of the cancellation that can be achieved with a local active sound control system is limited, particularly at frequencies above about 300 Hz, so that control of the pressure at fixed points in space does not give satisfactory performance as the listener’s head moves about, unless the position of the head can be tracked. The availability of low-cost head tracking systems for gaming applications opens up the possibility of such a head tracking active control system at a modest cost. In the experiments reported here, such a system was used to track the head position in a local active sound controller, implemented in a headrest. The positions of the listener’s ears were calculated from the head position. This was used in lookup tables to estimate both the responses from the secondary sources to the remote microphone positions at the ear, and also the weightings on an array of monitoring microphones mounted on the headrest, used to estimate the pressures at these remote microphone positions, using an observer. These estimates were then used to adapt the two control filters driving the secondary sources.
Text
O11000135.pdf
- Accepted Manuscript
More information
Published date: 6 December 2015
Venue - Dates:
12th Western Pacific Acoustics Conference, Singapore, 2015-12-06 - 2015-12-10
Organisations:
Signal Processing & Control Grp
Identifiers
Local EPrints ID: 388063
URI: http://eprints.soton.ac.uk/id/eprint/388063
PURE UUID: bbdf9535-7817-4ec4-8d91-6e7a4544c79e
Catalogue record
Date deposited: 19 Feb 2016 15:15
Last modified: 15 Mar 2024 03:37
Export record
Contributors
Author:
Woomin Jung
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics