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Home / INTER-NOISE and NOISE-CON Congress and Conference Proceedings, InterNoise19, Madrid, Spain, pages 5998-6996

Frequency range extension of sound diffusers by means of multiobjective optimization

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The frequency range of a Schroeder sound diffuser is determined by its dimensions, depth of the wells and total width. Several authors have studied the relationship between the diffuser dimensions and the lowest and highest frequency with significative diffusion. In this paper we have verified the validity of previous works. Furthermore, we have extended the working frequency range to lower frequencies by means of a multiobjective optimization. Preliminary results reveal that the frequency range can be extended to lower frequencies, particularly if different widths are defined for each well.

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Document Type: Research Article

Affiliations: 1: Instituto de Investigación para la Gestión Integrada de Zonas Costeras, Universitat Politècnica de València 2: Universitat Politècnica de València 3: ISISE, Department of Civil Engineering, University of Coimbra 4: Acoustics Research Centre, University of Salford

Publication date: 30 September 2019

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