University of Surrey

Test tubes in the lab Research in the ATI Dance Research

Acoustic contrast, planarity and robustness of sound zone methods using a circular loudspeaker array

Coleman, P, Jackson, PJB, Olik, M, Møller, M, Olsen, M and Pedersen, JA (2014) Acoustic contrast, planarity and robustness of sound zone methods using a circular loudspeaker array Journal of the Acoustical Society of America, 135 (4). pp. 1929-1940.

[img]
Preview
Text
ColemanEtAl_AnechoicPerformance_PrintVersion.pdf
Available under License : See the attached licence file.

Download (2MB) | Preview
[img]
Preview
Text (licence)
SRI_deposit_agreement.pdf
Available under License : See the attached licence file.

Download (33kB) | Preview

Abstract

Since the mid 1990s, acoustics research has been undertaken relating to the sound zone problem—using loudspeakers to deliver a region of high sound pressure while simultaneously creating an area where the sound is suppressed—in order to facilitate independent listening within the same acoustic enclosure. The published solutions to the sound zone problem are derived from areas such as wave field synthesis and beamforming. However, the properties of such methods differ and performance tends to be compared against similar approaches. In this study, the suitability of energy focusing, energy cancelation, and synthesis approaches for sound zone reproduction is investigated. Anechoic simulations based on two zones surrounded by a circular array show each of the methods to have a characteristic performance, quantified in terms of acoustic contrast, array control effort and target sound field planarity. Regularization is shown to have a significant effect on the array effort and achieved acoustic contrast, particularly when mismatched conditions are considered between calculation of the source weights and their application to the system.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering > Centre for Vision Speech and Signal Processing
Authors :
AuthorsEmailORCID
Coleman, PUNSPECIFIEDUNSPECIFIED
Jackson, PJBUNSPECIFIEDUNSPECIFIED
Olik, MUNSPECIFIEDUNSPECIFIED
Møller, MUNSPECIFIEDUNSPECIFIED
Olsen, MUNSPECIFIEDUNSPECIFIED
Pedersen, JAUNSPECIFIEDUNSPECIFIED
Date : 1 April 2014
Identification Number : 10.1121/1.4866442
Additional Information : Copyright 2014 Acoustical Society of America. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the Acoustical Society of America.The following article appeared in Journal of the Acoustical Society of America and may be found at http://dx.doi.org./10.1121/1.4866442
Depositing User : Symplectic Elements
Date Deposited : 01 Aug 2014 15:24
Last Modified : 01 Oct 2014 01:08
URI: http://epubs.surrey.ac.uk/id/eprint/805526

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year


Information about this web site

© The University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom.
+44 (0)1483 300800