Sami Driss Karkar

Cette personne n’est plus à l’EPFL

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Publications associées (24)

Electroacoustic absorbers for the low-frequency modal equalization of a room: what is the optimal target impedance for maximum modal damping, depending on the total area of absorbers?

Véronique Adam, Hervé Lissek, Etienne Thierry Jean-Luc Rivet, Sami Driss Karkar

Electroacoustic absorbers consist of loudspeakers, shunted with an electrical circuit designed to obtain a given acoustic impedance. Their design and principles are now well understood. Unidimensional experiments, using plane waves under normal incidence i ...

2014

Absorbeurs électroacoustiques pour l'égalisation modale des salles : Une nouvelle approche avec des haut-parleurs à double bobine

Hervé Lissek, Etienne Thierry Jean-Luc Rivet, Sami Driss Karkar

Le défi récurrent dans les salles dédiées aux systèmes audio de haute-fidélité est l’égalisation du champ sonore aux basses fréquences. Selon la position du point d’écoute, la réponse de la salle en ce point peut entrainer des niveaux de pression acoustiqu ...

2014

Acoustic Leaky-Wave Antenna

Hervé Lissek, Seyyed Hussein Seyyed Esfahlani, Sami Driss Karkar

In the last years, the number of studies carried out in the field of acoustic metamaterials has significantly increased. In year 2009, our group proposed a concept of acoustic composite right/left hand transmission line (CRLH-TL) metamaterial, consisting o ...

2014

Optimization of an acoustic leaky-wave antenna based on acoustic metamaterial

Hervé Lissek, Seyyed Hussein Seyyed Esfahlani, Sami Driss Karkar

In recent years, an increasing number of pioneering studies have been carried out in the field of acoustic metamaterials, following the path of electromagnetic metamaterials. These artificial engineered materials are designed in such a way so as to achieve ...

2013

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