Optimisation of subwoofer placement using a finite-difference time-domain acoustic simulation

Bachelor thesis (2023)

Authors

D.E. Flipse Electrical Engineering, Mathematics and Computer Science

Contributors

E. Eisemann Computer Graphics and Visualisation - EEMCS (mentor)
Jorge Martinez (mentor)
M.M. Specht Web Information Systems - EEMCS (graduation committee member)
Faculty
Electrical Engineering, Mathematics and Computer Science, Electrical Engineering, Mathematics and Computer Science
Copyright: © 2023 Delano Flipse
More Info
expand_more

Published Date

03-02-2023

Language

English

Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Faculty

Electrical Engineering, Mathematics and Computer Science

Abstract

The placement of a subwoofer has significant impact on the quality of its sound reproduction. This paper present a method to optimise subwoofer placement in a room. Resonances caused by room boundaries (called "room modes") cause localised peaks and lows for specific lower frequencies. The goal is to minimize the simulated frequency response over a listener region. To simulate the frequency response of a subwoofer location, a Finite-Difference Time-Domain method is applied. The results show that this method correlates to both a measured frequency response and an analytical model. The optimal location predicted with the simulation could not flatten every room mode, but had decreased variation for a number of resonant frequencies.

Files

CSE3000_Final_Paper_4606116_df... (pdf)
(pdf | 1.51 Mb)
Unknown license