Remote sensing using multi-microphone configurations for local active noise control applications
Remote sensing using multi-microphone configurations for local active noise control applications
In local active noise control applications it is often impractical or even impossible to place sensors at the locations where the sound field is to be controlled. To overcome this limitation, virtual sensing methods are used to project the zones of quiet away from the physical sensors to the position of interest. This study investigates the use of multi-microphone configurations for the estimation of a wide-sense stationary, single-frequency, diffuse sound field with the Remote Microphone Technique. Linear and circular arrays of three-dimensional microphone configurations were evaluated through numerical simulations, and the findings indicate that multi-microphone setups lead to increased estimation accuracy over larger areas compared to conventional single microphone arrays. Additionally, the effect of regularisation on the estimation error and spatial extent of the estimation zones was also studied and is shown to significantly affect the performance of dense microphone configurations.
Active noise control, Virtual sensing, Remote microphone technique, Microphone arrays
Kappis, Achilles
43035df6-e3bc-4082-89a4-073509c4527d
Cheer, Jordan
8e452f50-4c7d-4d4e-913a-34015e99b9dc
Zhang, Aimee
6c5536d1-5066-437b-987c-c2307021709d
8 July 2024
Kappis, Achilles
43035df6-e3bc-4082-89a4-073509c4527d
Cheer, Jordan
8e452f50-4c7d-4d4e-913a-34015e99b9dc
Zhang, Aimee
6c5536d1-5066-437b-987c-c2307021709d
Kappis, Achilles, Cheer, Jordan and Zhang, Aimee
(2024)
Remote sensing using multi-microphone configurations for local active noise control applications.
30th International Congress on Sound and Vibration, , Amsterdam, Netherlands.
08 - 11 Jul 2024.
8 pp
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
In local active noise control applications it is often impractical or even impossible to place sensors at the locations where the sound field is to be controlled. To overcome this limitation, virtual sensing methods are used to project the zones of quiet away from the physical sensors to the position of interest. This study investigates the use of multi-microphone configurations for the estimation of a wide-sense stationary, single-frequency, diffuse sound field with the Remote Microphone Technique. Linear and circular arrays of three-dimensional microphone configurations were evaluated through numerical simulations, and the findings indicate that multi-microphone setups lead to increased estimation accuracy over larger areas compared to conventional single microphone arrays. Additionally, the effect of regularisation on the estimation error and spatial extent of the estimation zones was also studied and is shown to significantly affect the performance of dense microphone configurations.
Text
Achilles_Kappis_ICSV30
- Author's Original
More information
Accepted/In Press date: 29 March 2024
Published date: 8 July 2024
Venue - Dates:
30th International Congress on Sound and Vibration, , Amsterdam, Netherlands, 2024-07-08 - 2024-07-11
Keywords:
Active noise control, Virtual sensing, Remote microphone technique, Microphone arrays
Identifiers
Local EPrints ID: 489857
URI: http://eprints.soton.ac.uk/id/eprint/489857
PURE UUID: a7db859f-c536-4892-8cf0-f564f1c6af3e
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Date deposited: 03 May 2024 16:46
Last modified: 31 Jul 2024 02:07
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Contributors
Author:
Achilles Kappis
Author:
Aimee Zhang
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