Paper published in a journal (Scientific congresses and symposiums)
Reverberated sound field modeling in coupled rooms using a diffusion equation
Billon, Alexis; Valeau, Vincent; Sakout, Anas et al.
2004In Journal of the Acoustical Society of America, 116 (4), p. 2553-2553
Peer Reviewed verified by ORBi
 

Files


Full Text
abstract.doc
Publisher postprint (20.99 kB)
Download
Annexes
pres.ppt
Publisher postprint (2.05 MB)
Download

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
Acoustics; Room acoustics; Diffusion model
Abstract :
[en] Sound modeling in coupled rooms has attracted considerable attention in the past, but accurate and operational models are still needed. In recent papers, a diffusion equation based model has been applied with success to unusual room shapes. This approach allows nonuniform repartition of energy, and is especially relevant in room acoustics for long rooms or complex spaces such as networks of rooms. The present work aims at validating the behavior of the diffusion model in the case of two acoustically coupled rooms separated by an open area. In this purpose, the time-dependent diffusion equation is solved in three dimensions using a finite-element solver. It allows one to predict both sound attenuation and reverberation time at any point of the coupled rooms. Parameters influencing the coupling, i.e., room relative sizes, aperture size and room absorption areas, are investigated. Results are then compared with the classical statistical theory of coupled rooms. Finally, a comparison with experimental data in two coupled classrooms is also provided.
Disciplines :
Engineering, computing & technology: Multidisciplinary, general & others
Author, co-author :
Billon, Alexis ;  Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Electroacoustique, acoustique appliquée et éclairage
Valeau, Vincent
Sakout, Anas
Picaut, Judicaël
Language :
English
Title :
Reverberated sound field modeling in coupled rooms using a diffusion equation
Publication date :
October 2004
Event name :
148th Meeting of the Acoustical Society of America
Event organizer :
ASA
Event place :
San Diego, United States
Audience :
International
Journal title :
Journal of the Acoustical Society of America
ISSN :
0001-4966
eISSN :
1520-8524
Publisher :
American Institute of Physics, Melville, United States - New York
Volume :
116
Issue :
4
Pages :
2553-2553
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
ADEME - Agence de l'Environnement et de la Maîtrise de l'Energie [FR]
Available on ORBi :
since 21 February 2010

Statistics


Number of views
72 (0 by ULiège)
Number of downloads
67 (0 by ULiège)

Bibliography


Similar publications



Contact ORBi