Application of the multi-objective optimisation framework to the creation of personal sound zone
Application of the multi-objective optimisation framework to the creation of personal sound zone
The main methods used to create multiple personal sound zones are optimisation processes involving conflicting objective functions. The two most common methods, Acoustic Contrast Control (ACC) and Pressure Matching (PM), aim to simultaneously optimise various objectives: the system performance in terms of reproduction error, the amount of acoustic energy in the so-called bright zones and dark zones, and the amount of energy required by the system to obtain the desired performance (the array effort). In this work, the general framework of multi-objective optimisation and the main techniques employed to solve this class of problems are firstly introduced. Then, it is shown that the most renowned methods developed in the last 40 years in the field of personal sound zone systems are special cases of theses general multi-objective techniques.
Gallian, Wilfried
d5111637-9d8b-42b0-b014-f5bc9ef342e6
May 2022
Gallian, Wilfried
d5111637-9d8b-42b0-b014-f5bc9ef342e6
Gallian, Wilfried and Fazi, Filippo
(2022)
Application of the multi-objective optimisation framework to the creation of personal sound zone.
152nd Audio Engineering Society, , The Hague, Netherlands.
9 pp
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
The main methods used to create multiple personal sound zones are optimisation processes involving conflicting objective functions. The two most common methods, Acoustic Contrast Control (ACC) and Pressure Matching (PM), aim to simultaneously optimise various objectives: the system performance in terms of reproduction error, the amount of acoustic energy in the so-called bright zones and dark zones, and the amount of energy required by the system to obtain the desired performance (the array effort). In this work, the general framework of multi-objective optimisation and the main techniques employed to solve this class of problems are firstly introduced. Then, it is shown that the most renowned methods developed in the last 40 years in the field of personal sound zone systems are special cases of theses general multi-objective techniques.
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Published date: May 2022
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152nd Audio Engineering Society, , The Hague, Netherlands, 2022-05-07
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Local EPrints ID: 493429
URI: http://eprints.soton.ac.uk/id/eprint/493429
PURE UUID: f69c2d73-4a08-495b-a730-e91c4f971e90
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Date deposited: 03 Sep 2024 16:32
Last modified: 03 Sep 2024 16:32
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Author:
Filippo Fazi
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