Numerical comparison of sound field control strategies under free-field conditions for given performance constraints


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 At Institute of Acoustics - Reproduced Sound 2014. 14 - 15 Oct 2014.

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Description/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

Item Type: Conference or Workshop Item (Paper)
Venue - Dates: Institute of Acoustics - Reproduced Sound 2014, 2014-10-14 - 2014-10-15
Subjects: Q Science > QC Physics
Organisations: Acoustics Group
ePrint ID: 370525
Date :
Date Event
October 2014Published
Date Deposited: 31 Oct 2014 09:31
Last Modified: 19 Feb 2017 17:14
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/370525

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