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Thomas Laurence

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Related publications (7)

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An Electroacoustic Resonator consists of a loudspeaker used as a membrane resonator, through anacoustic pressure-based controlled electrical current, in order to vary its vibrating velocity in re-sponse to an exogenous sound field. This way, the loudspeake ...

Canadian Acoustical Association2019

Invented at the end of the XIXth century, the electrodynamic loudspeaker has not much changed sincethen. Although the materials have greatly evolved, the geometry and the transduction principle staythe same. In many applications, the presence of two sets o ...

Canadian Acoustical Association2019

Toward Wideband Steerable Acoustic Metasurfaces with Arrays of Active Electroacoustic Resonators

Romain Christophe Rémy Fleury, Hervé Lissek, Etienne Thierry Jean-Luc Rivet, Thomas Laurence

We introduce an active concept for achieving acoustic metasurfaces with steerable reflection properties, effective over a wide frequency band. The proposed active acoustic metasurface consists in a surface array of subwavelength loudspeakers diaphragms, ea ...

2018

Development of a wideband steerable acoustic metasurface composed of active electroacoustic resonators with COMSOL

Romain Christophe Rémy Fleury, Hervé Lissek, Etienne Thierry Jean-Luc Rivet, Thomas Laurence

The recent introduction of acoustic metamaterials and metasurfaces in the literature has triggered an tremendous interest in the scientific community, with their capability to achieve extraordinary acoustic properties for various acoustic and noise control ...

2018

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Nous proposons un concept de métasurface acoustique orientables en réflexion, effective sur une large bande de fréquences, à l’aide de cellules actives. La métasurface est composée d’un réseau de haut-parleurs petits devant la longueur d’onde, dont l’impéd ...

2018

Conception d'une zone d'écoute personnelle par contrôle d'impédance déporté

Hervé Lissek, Romain Boulandet, Thomas Laurence

Afin de proposer des espaces d’écoute personnels dans des environnements bruyants, il est d’un grand intérêt de pouvoir concevoir une zone de silence, et ce sans appareillage envahissant l’espace de l’utilisateur. Ces travaux proposent une approche de cont ...

2018

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This paper presents a local control approach to generate remote quiet zones. To deal with situations where global control can hardly be achieved, it is proposed to use an arrangement of spot-type sound reducers as originally suggested by Olson and May. Ass ...

2017