Directional feedforward ANC system with virtual sensing technique
Directional feedforward ANC system with virtual sensing technique
Active noise control (ANC) utilizes the superposition property of acoustic waves. When an anti-noise wave is elegantly generated to have the same amplitude and inverse phase of the noise wave, it can reduce the noise level at the desired location, where an error microphone is placed to monitor the error signal and make the whole system a close loop control problem. In the case when the error microphone cannot be placed at the desired noise reduction location, virtual sensing techniques are needed. In this paper, we examine one of the virtual sensing techniques in an experiment setup using the parametric array loudspeaker as the secondary source. Experiment results show that improved noise reduction can be obtained at the virtual microphone location.
Edamoto, Shoma
71303e45-bf9f-4a45-b5f0-da4b59c5d751
Shi, Chuang
c46f72bd-54c7-45ee-ac5d-285691fccf81
Kajikawa, Yoshinobu
a7d32c43-f780-4ae0-884c-08fe6f70c582
15 September 2016
Edamoto, Shoma
71303e45-bf9f-4a45-b5f0-da4b59c5d751
Shi, Chuang
c46f72bd-54c7-45ee-ac5d-285691fccf81
Kajikawa, Yoshinobu
a7d32c43-f780-4ae0-884c-08fe6f70c582
Edamoto, Shoma, Shi, Chuang and Kajikawa, Yoshinobu
(2016)
Directional feedforward ANC system with virtual sensing technique.
2016 International Workshop on Smart Info-Media Systems in Asia, Classic Hameo Hotel & Serviced Apartments, Ayutthaya, Thailand.
14 - 17 Sep 2016.
Record type:
Conference or Workshop Item
(Paper)
Abstract
Active noise control (ANC) utilizes the superposition property of acoustic waves. When an anti-noise wave is elegantly generated to have the same amplitude and inverse phase of the noise wave, it can reduce the noise level at the desired location, where an error microphone is placed to monitor the error signal and make the whole system a close loop control problem. In the case when the error microphone cannot be placed at the desired noise reduction location, virtual sensing techniques are needed. In this paper, we examine one of the virtual sensing techniques in an experiment setup using the parametric array loudspeaker as the secondary source. Experiment results show that improved noise reduction can be obtained at the virtual microphone location.
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Published date: 15 September 2016
Venue - Dates:
2016 International Workshop on Smart Info-Media Systems in Asia, Classic Hameo Hotel & Serviced Apartments, Ayutthaya, Thailand, 2016-09-14 - 2016-09-17
Identifiers
Local EPrints ID: 484472
URI: http://eprints.soton.ac.uk/id/eprint/484472
PURE UUID: bbaaf389-9f12-43a9-b9e9-116d4766effa
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Date deposited: 16 Nov 2023 13:17
Last modified: 17 Nov 2023 03:08
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Contributors
Author:
Shoma Edamoto
Author:
Chuang Shi
Author:
Yoshinobu Kajikawa
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