|Reference : Prediction of the acoustics of coupled rooms with the acoustic-diffusion model|
|Scientific congresses and symposiums : Unpublished conference|
|Engineering, computing & technology : Multidisciplinary, general & others|
|Prediction of the acoustics of coupled rooms with the acoustic-diffusion model|
|Valeau, Vincent [ > > ]|
|Billon, Alexis [Université de Liège - ULg > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Electroacoustique, acoustique appliquée et éclairage >]|
|Hodgson, Murray [ > > ]|
|Picaut, Judicaël [ > > ]|
|Sakout, Anas [ > > ]|
|9th West Pacific Acoustics Conference|
|[en] Room acoustics ; Diffusion ; Model|
|[en] A general model is proposed to simulate the acoustics of coupled rooms. It is based on
a diffusion equation, solved numerically to perform acoustic predictions. The presence of
scattering objects –or the “fittings”– is also taken into account. Distinct sub-volumes can be
defined, representing either coupled volumes or zones with different fitting characteristics.
Some sample results are presented, and compared with ray-tracing results and experimental
data. Two situations are assessed: two coupled classrooms, and a room divided into two
zones, one empty, one fitted. The diffusion-model predictions match the other data
satisfactorily, both in terms of sound attenuation and sound decay. Diffusion-based results
are obtained with the advantage of low computational time compared to ray-tracing results.
|Researchers ; Professionals|
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