Assessment of wave-based methods for room acoustic simulations

Boris Jean-Francois Mondet, Jonas Brunskog, Cheol-Ho Jeong, C.L. Christensen, Jens Holger Rindel

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Abstract

Room acoustic simulations performed with wave-based methods are becoming feasible alternatives to geometrical acoustics thanks to the increasing power of computers. In this preliminary study two of these methods are investigated: the Finite Difference in the Time Domain (FDTD) and the Equivalent Source Method (ESM). The Image Source Method (ISM) is also used as a reference for the comparison of results. The two methods chosen perform calculations in the time domain. This
has the advantage of obtaining results for all frequencies up to a selected limit at once instead of running a simulation for each individual frequency needed. Time-domain calculations also directly yield the impulse response of a room, from which can be derived the acoustic parameters and auralization signals.
Original languageEnglish
Title of host publicationProceedings of the Institute of Acoustics
Number of pages6
Volume40
Publication date2018
Publication statusPublished - 2018
EventAuditorium Acoustics 2018 - Elbphilharmonie, HafenCity, Hamburg, Germany
Duration: 4 Oct 20186 Oct 2018

Conference

ConferenceAuditorium Acoustics 2018
LocationElbphilharmonie, HafenCity
CountryGermany
CityHamburg
Period04/10/201806/10/2018
SeriesInstitute of Acoustics. Proceedings (CD-ROM)
Number3
Volume40
ISSN1478-6095

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