Room Acoustic Simulations using High-Order Spectral Element Methods

Finnur Kári Pind Jörgensson, Mikael Staugaard Mejling, Allan Peter Engsig-Karup, Cheol-Ho Jeong, Jakob Strømann-Andersen

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

A wave-based numerical scheme for simulating room acoustics, based on the spectral element method, is presented. This method possesses qualities, such as high-order accuracy and geometrical flexibility, which make it very suitable for accurate and cost-effective room acoustic simulations of complex geometries of any size and shape. Various numerical experiments are carried out in order to analyze the accuracy and efficiency of the scheme. The results demonstrate how using high-order elements is essential for capturing wave dispersion and thereby allowing for the usage of coarser spatial discretizations, which can reduce computation time significantly. Furthermore, the methods ability to accurately represent curved boundaries, by means of curvilinear mesh elements, is demonstrated. The investigation is relevant for understanding how to improve the accuracy of room acoustics simulations in real geometries and serves as a stepping stone towards developing a relatively fast and flexible wave-based room acoustic simulator.
Original languageEnglish
Title of host publicationEuronoise 2018 - Conference Proceeding
Number of pages8
PublisherEuropean Acoustics Association
Publication date2018
Publication statusPublished - 2018
EventEuronoise 2018 - Convention Center Creta Maris, Hersonissos, Crete, Greece
Duration: 27 May 201831 May 2018

Conference

ConferenceEuronoise 2018
LocationConvention Center Creta Maris
CountryGreece
CityHersonissos, Crete
Period27/05/201831/05/2018

Bibliographical note

Euronoise 2018

Cite this

Pind Jörgensson, F. K., Mejling, M. S., Engsig-Karup, A. P., Jeong, C-H., & Strømann-Andersen, J. (2018). Room Acoustic Simulations using High-Order Spectral Element Methods. In Euronoise 2018 - Conference Proceeding European Acoustics Association.
Pind Jörgensson, Finnur Kári ; Mejling, Mikael Staugaard ; Engsig-Karup, Allan Peter ; Jeong, Cheol-Ho ; Strømann-Andersen, Jakob. / Room Acoustic Simulations using High-Order Spectral Element Methods. Euronoise 2018 - Conference Proceeding. European Acoustics Association, 2018.
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title = "Room Acoustic Simulations using High-Order Spectral Element Methods",
abstract = "A wave-based numerical scheme for simulating room acoustics, based on the spectral element method, is presented. This method possesses qualities, such as high-order accuracy and geometrical flexibility, which make it very suitable for accurate and cost-effective room acoustic simulations of complex geometries of any size and shape. Various numerical experiments are carried out in order to analyze the accuracy and efficiency of the scheme. The results demonstrate how using high-order elements is essential for capturing wave dispersion and thereby allowing for the usage of coarser spatial discretizations, which can reduce computation time significantly. Furthermore, the methods ability to accurately represent curved boundaries, by means of curvilinear mesh elements, is demonstrated. The investigation is relevant for understanding how to improve the accuracy of room acoustics simulations in real geometries and serves as a stepping stone towards developing a relatively fast and flexible wave-based room acoustic simulator.",
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Pind Jörgensson, FK, Mejling, MS, Engsig-Karup, AP, Jeong, C-H & Strømann-Andersen, J 2018, Room Acoustic Simulations using High-Order Spectral Element Methods. in Euronoise 2018 - Conference Proceeding. European Acoustics Association, Euronoise 2018, Hersonissos, Crete, Greece, 27/05/2018.

Room Acoustic Simulations using High-Order Spectral Element Methods. / Pind Jörgensson, Finnur Kári; Mejling, Mikael Staugaard; Engsig-Karup, Allan Peter; Jeong, Cheol-Ho; Strømann-Andersen, Jakob.

Euronoise 2018 - Conference Proceeding. European Acoustics Association, 2018.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

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T1 - Room Acoustic Simulations using High-Order Spectral Element Methods

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AU - Mejling, Mikael Staugaard

AU - Engsig-Karup, Allan Peter

AU - Jeong, Cheol-Ho

AU - Strømann-Andersen, Jakob

N1 - Euronoise 2018

PY - 2018

Y1 - 2018

N2 - A wave-based numerical scheme for simulating room acoustics, based on the spectral element method, is presented. This method possesses qualities, such as high-order accuracy and geometrical flexibility, which make it very suitable for accurate and cost-effective room acoustic simulations of complex geometries of any size and shape. Various numerical experiments are carried out in order to analyze the accuracy and efficiency of the scheme. The results demonstrate how using high-order elements is essential for capturing wave dispersion and thereby allowing for the usage of coarser spatial discretizations, which can reduce computation time significantly. Furthermore, the methods ability to accurately represent curved boundaries, by means of curvilinear mesh elements, is demonstrated. The investigation is relevant for understanding how to improve the accuracy of room acoustics simulations in real geometries and serves as a stepping stone towards developing a relatively fast and flexible wave-based room acoustic simulator.

AB - A wave-based numerical scheme for simulating room acoustics, based on the spectral element method, is presented. This method possesses qualities, such as high-order accuracy and geometrical flexibility, which make it very suitable for accurate and cost-effective room acoustic simulations of complex geometries of any size and shape. Various numerical experiments are carried out in order to analyze the accuracy and efficiency of the scheme. The results demonstrate how using high-order elements is essential for capturing wave dispersion and thereby allowing for the usage of coarser spatial discretizations, which can reduce computation time significantly. Furthermore, the methods ability to accurately represent curved boundaries, by means of curvilinear mesh elements, is demonstrated. The investigation is relevant for understanding how to improve the accuracy of room acoustics simulations in real geometries and serves as a stepping stone towards developing a relatively fast and flexible wave-based room acoustic simulator.

M3 - Article in proceedings

BT - Euronoise 2018 - Conference Proceeding

PB - European Acoustics Association

ER -

Pind Jörgensson FK, Mejling MS, Engsig-Karup AP, Jeong C-H, Strømann-Andersen J. Room Acoustic Simulations using High-Order Spectral Element Methods. In Euronoise 2018 - Conference Proceeding. European Acoustics Association. 2018