Adaptive active control of free space acoustic noise
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Other Title
Authors
Ardekani, Iman
Abdulla, W. H.
Abdulla, W. H.
Author ORCID Profiles (clickable)
Degree
Grantor
Date
2013
Supervisors
Type
Conference Contribution - Paper in Published Proceedings
Ngā Upoko Tukutuku (Māori subject headings)
Keyword
active noise control (ANC)
acoustic noise
algorithms
free space noise
acoustic noise
algorithms
free space noise
ANZSRC Field of Research Code (2020)
Citation
Ardekani, I. T., and Abdulla, W. H. (2013). Adaptive active control of free space acoustic noise. Proceedings of Meetings on Acoustics(Ed.), 19, 055044-055052.
Abstract
This paper concerns adaptive active control of acoustic noise in free space. Conventional adaptive active noise control algorithms are efficient in acoustic ducts or headphones; however, they are very sensitive when being used in free space. An efficient adaptive active noise control algorithm for free space noise is developed based on analyzing noise field in a volumetric zone around the error microphone. The traditional algorithm and the proposed algorithm are fully implemented by using a high performance embedded controller. The implemented setup is then used for active control of acoustic noise in free space. Different experiments show that the traditional active noise control algorithm is not stable when being used for free space noise; however, the proposed algorithm is stable and attenuates noise in free space by about 15 dB.
Publisher
Published by the Acoustical Society of America through the American Institute of Physics
Permanent link
Link to ePress publication
DOI
http://dx.doi.org/10.1121/1.4800892
Copyright holder
Acoustical Society of America
Copyright notice
© 2013 Acoustical Society of America