Numerical comparison of sound field control strategies under free-field conditions for given performance constraints
Numerical comparison of sound field control strategies under free-field conditions for given performance constraints
Algorithms for sound field control are available that are used to control sound radiation in space for the creation of so-called personal audio zones. These algorithms provide for the frequency-dependent complex voltage inputs that are used to drive an array of loudspeakers producing the complex source strengths that achieve the control of sound. In this paper, a set of sound field control algorithms is compared by means of numerical simulations under free-field conditions using a linear loudspeaker array and given constraints on directivity performance and maximum input power allowed to the loudspeakers. The performance of the algorithms is quantified in terms of array efficiency and acoustic contrast. Given the chosen sound field control arrangement, the results show that performance of these algorithms is comparable at low frequencies, whilst significant differences are noticed at high frequencies
Olivieri, Ferdinando
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Fazi, Filippo Maria
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Shin, Mincheol
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Nelson, Philip Arthur
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Simone, Fontana
c194e2f4-0677-4189-bb7b-f0b171a89f6a
Yue, Lang
694cb09d-e796-4ed5-bdcf-f8b304451ad4
October 2014
Olivieri, Ferdinando
02d11b82-4e34-441f-9e04-60fb117d6617
Fazi, Filippo Maria
e5aefc08-ab45-47c1-ad69-c3f12d07d807
Shin, Mincheol
2c911163-f027-4c79-8a7b-368f326c46e7
Nelson, Philip Arthur
5c6f5cc9-ea52-4fe2-9edf-05d696b0c1a9
Simone, Fontana
c194e2f4-0677-4189-bb7b-f0b171a89f6a
Yue, Lang
694cb09d-e796-4ed5-bdcf-f8b304451ad4
Olivieri, Ferdinando, Fazi, Filippo Maria, Shin, Mincheol, Nelson, Philip Arthur, Simone, Fontana and Yue, Lang
(2014)
Numerical comparison of sound field control strategies under free-field conditions for given performance constraints.
Institute of Acoustics - Reproduced Sound 2014.
14 - 15 Oct 2014.
Record type:
Conference or Workshop Item
(Paper)
Abstract
Algorithms for sound field control are available that are used to control sound radiation in space for the creation of so-called personal audio zones. These algorithms provide for the frequency-dependent complex voltage inputs that are used to drive an array of loudspeakers producing the complex source strengths that achieve the control of sound. In this paper, a set of sound field control algorithms is compared by means of numerical simulations under free-field conditions using a linear loudspeaker array and given constraints on directivity performance and maximum input power allowed to the loudspeakers. The performance of the algorithms is quantified in terms of array efficiency and acoustic contrast. Given the chosen sound field control arrangement, the results show that performance of these algorithms is comparable at low frequencies, whilst significant differences are noticed at high frequencies
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Published date: October 2014
Venue - Dates:
Institute of Acoustics - Reproduced Sound 2014, 2014-10-14 - 2014-10-15
Organisations:
Acoustics Group
Identifiers
Local EPrints ID: 370525
URI: http://eprints.soton.ac.uk/id/eprint/370525
PURE UUID: baf4adbe-aca0-429d-b2b4-701e177fd8cf
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Date deposited: 31 Oct 2014 09:31
Last modified: 02 Sep 2023 01:41
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Contributors
Author:
Ferdinando Olivieri
Author:
Mincheol Shin
Author:
Fontana Simone
Author:
Lang Yue
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