This research concentrates on determining the transient acoustic field of a loudspeaker by applying uncoupled finite-element and boundary-element methods. The well-known problem of instability when working in the time domain was avoided by using a Burton–Miller type integral equation formulation. The accuracy of the results shows that this approach is well suited for modeling loudspeakers. Stable results were obtained in all cases and they were reasonably accurate when the time step was smaller than or equal to the experimental sampling rate. Two examples of insights are provided: differing decay rates of various loudspeaker components, and the presence of the acoustic center.

Authors: Chappell, D. J.; Geaves, G.; Henwood, D. J.; Harris, P. J.; Chakrabarti, R.
Affiliations: School of Computing and Mathematical Sciences, University of Brighton, Brighton, UK; B & W Group Ltd., Steyning Research Establishment, Steyning, West Sussex, UK(See document for exact affiliation information.)
JAES Volume 56 Issue 11 pp. 956-971; November 2008
Publication Date: December 8, 2008 Import into BibTeX
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=14644

Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $33 for non-members and is free for AES members and E-Library subscribers.

Learn more about the AES E-Library

E-Library Location: (CD JAES56)   /jaes56/11/pg956.pdf

Start a discussion about this paper!