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Browsing by Subject "Sound diffusers"

Now showing items 1-7 of 7

Design of sound phase diffusers by means of multiobjective optimization approach using ev-MOGA evolutionary algorithm

Herrero Durá, Juan Manuel; Blasco, Xavier; Sánchez Pérez, Juan Vicente; Redondo, Javier (Springer Verlag, 2016)

In this paper a new approach to design sound phase diffusers is presented. The acoustic properties of such diffusers are usually increased by using single objective optimization methods. Here we propose the use of a multi- ...
Estudio de las aplicaciones de los difusores de sonido basados en cristales de sonido

Fuster Fajardo, José Miguel (Universitat Politècnica de València, 2014-01-21)

Uno de los objetivos en la Acústica de Salas consiste en la creación de un campo sonoro difuso. Los difusores de sonido pueden mejorar el rendimiento acústico de las salas, aumentando la difusión del campo sonoro, la ...
Estudio del aumento de la difusión del sonido producida por cristales de sonido

Quintana Gallardo, Alberto (Universitat Politècnica de València, 2015-11-02)

El presente trabajo trata el estudio de la difusión y los parámetros acústicos, en una pequeña sala usando la técnica de simulación de Diferencias Finitas en el Dominio Temporal. El estudio se realiza en 3 condiciones ...
Optimized sound diffusers based on sonic crystals using a multiobjective evolutionary algorithm

Redondo, Javier; Sánchez Pérez, Juan Vicente; Blasco, Xavier; Herrero Durá, Juan Manuel; Vorlander, Michael (Acoustical Society of America, 2016-05)

Sonic crystals have been demonstrated to be good candidates to substitute for conventional diffusers in order to overcome the need for extremely thick structures when low frequencies have to be scattered, however, their ...
Research of the acoustic phenomenon produced by isolated scatterers and its applicability as a noise reducing device in transport infrastructures. Search for an optimised and sustainable design.

Peiró Torres, María del Pilar (Universitat Politècnica de València, 2021-03-30)

[ES] El control de ruido ambiental es una preocupación de primera magnitud para las sociedades avanzadas, debido a los problemas derivados que ocasionan en la salud de los ciudadanos. Una de las soluciones más extendidas ...
Sound diffusers based on sonic crystals

Redondo, Javier; Picó Vila, Rubén; Sánchez Morcillo, Víctor José; Woszczyk, Wieslaw (Acoustical Society of America, 2013-12)

A sound diffuser is proposed based on sonic crystals, structures formed by a periodic distribution of cylindrical scatterers in a host medium, which is usually air. The diffuser is a so-called biperiodic structure, as ...
Spiral sound-diffusing metasurfaces based on holographic vortices

Jimenez, Noe; Groby, Jean-Philippe; Romero-García, Vicent (Nature Publishing Group, 2021-05-13)

[EN] In this work, we show that scattered acoustic vortices generated by metasurfaces with chiral symmetry present broadband unusual properties in the far-field. These metasurfaces are designed to encode the holographic ...