Opens in a new tab

AES E-Library

← Back to search

Convention Paper

Volumetric Diffusers

Authors: Angus, Jamie; Cox, Trevor; Hughes, Richard; Umnova, Olga

AES Convention 124 · Paper 7432 · May 2008

Abstract

Although many types of diffusers have been proposed, they are predominantly surface treatment. This paper places the diffuser in the volume of the room rather than on the surfaces, forming a volume based diffuser. In particular, we examine suitable sequences for their implementation. We also consider suitable metric’s to evaluate their performance. At first single layer volumetric diffusers are examined, and then multi-layer volumetric diffusers are investigated. In particular, the effects of varying the spacing, and number of layers, is more closely examined. The Boundary Element Method (BEM) model is used to gain accurate predictions of the diffuser’s performance. Finally, we demonstrate a diffusion structure that has a similar performance to that of a Primitive Root Diffuser (PRD).

Details

Published in
AES Convention 124
AES Convention
124
Paper number
7432
Publication date
May 6, 2008
Session subject
Room and Architectural Acoustics; Sound Reinforcement
Affiliation
University of Salford (See document for exact affiliation information.)
Type
Convention Paper