The optimization of profiled diffusers

Cox, TJ

Abstract

Methods have been developed to produce profiled diffusers that create a large amount of diffusion. The methods are iterative and required the development of a new parameter to measure diffusion. Achieving scattering independent of angle has been attempted over a wide bandwidth. The methods are also applicable to other diffusion criteria. The diffusers consists of a series of wells of the same width but of different depths similar to Schroeder diffusers. Applications include concert halls, theatres, and studio monitor rooms. The new diffusers have been shown to create better, more uniform diffusion than the previous designs of Schroeder. This is due to the new designs being reliant on accurate boundary element prediction methods rather than more approximate techniques.

Citation

Cox, T. (1995). The optimization of profiled diffusers. ˜The œJournal of the Acoustical Society of America (Online), 97(5), 2928-2936. https://doi.org/10.1121/1.412972

• Journal Article Type: Article
• Publication Date: Jan 1, 1995
• Deposit Date: Apr 19, 2011
• Publicly Available Date: Apr 5, 2016
• Journal: The Journal of the Acoustical Society of America (JASA)
• Print ISSN: 0001-4966
• Peer Reviewed: Peer Reviewed
• Volume: 97
• Issue: 5
• Pages: 2928-2936
• DOI: https://doi.org/10.1121/1.412972
• Publisher URL: http://dx.doi.org/10.1121/1.412972
• Related Public URLs: http://asadl.org/jasa/resource/1/jasman/v97/i5/p2928_s1