Romain Boulandet

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Related publications (30)

Acoustic impedance synthesis at the diaphragm of moving coil loudspeakers using output feedback control

Hervé Lissek, Romain Boulandet

This paper discusses a time-domain technique for synthesizing acoustic impedance at the diaphragm of a loudspeaker using a proportional-plus-derivative output feedback. The dynamics of electroacoustic transducers such as moving-coil loudspeakers can be rea ...

2011

Practical active and semi-active strategies for the control of room acoustics in the low frequency range

Hervé Lissek, Romain Boulandet, Anne-Sophie Moreau

Modal acoustics is one of the main sources of annoyance in the low frequency range in rooms. Active noise control techniques can be deployed to reach sufficient acoustic benefit, but limited to a single frequency, whereas broader efficiency would require c ...

2010

Localisation des premières réflexions dans une salle par chrono-goniométrie acoustique

Xavier Falourd, Hervé Lissek, Romain Boulandet

De plus en plus souvent, les espaces d'écoute sont amenés à accueillir des spectacles autres que ceux pour lesquels ils ont été conçus et dimensionnés. C'est le cas d'un auditorium classique devenant le temps d'un festival une salle de concert pour musique ...

2010

Stratégies de contrôle actif de l’acoustique des salles aux basses fréquences – une étude expérimentale

Hervé Lissek, Romain Boulandet

Le comportement modal des salles est une des principales causes d’inconfort acoustique, dans l’habitat et dans les salles destinées à accueillir du public, dans le domaine des basses fréquences. Les solutions techniques de l’état de l’art ne permettent par ...

2010

Optimisation d'un absorbeur électroacoustique par plans d'expériences : approche expérimentale et numérique

Hervé Lissek, Romain Boulandet, Anne-Sophie Moreau

Dans cet article le processus d'optimisation d'absorbeurs électroacoustiques est étudié à l'aide de la méthode des surfaces de réponses. Un absorbeur électroacoustique est un système haut-parleur dont l'impédance acoustique peut être ajustée électriquement ...

2010

Optimization of electroacoustic absorbers by means of designed experiments

Hervé Lissek, Romain Boulandet

In multivariate systems, when it comes to identifying actual operating conditions ranges, or optimal settings, the use of constrained optimization is often required. Among the different tools for the engineer to perform such optimization, designed experime ...

Elsevier2010

Shunt loudspeakers for modal control in rooms

Pierre-Jean René, Hervé Lissek, Romain Boulandet

Engineers dealing with noise reduction in habitations close to transportation traffic or indus-trial facilities encounter several problems to decrease noise level in rooms at low frequencies. Passive materials and current building construction knowledge en ...

2009

Design of switching amplifier used in negative impedance dispoal for the active control of transducer's acoustic impedance

Hervé Lissek, Pavel Mokry, Romain Boulandet

We present a concept of "active material" with variable acoustic properties, being constituted of an electroacoustic transducer which acoustic impedance can be changed by an active mean. Among the different ways to obtain variable acoustic properties on an ...

2009

Factoring end-user expectations into the sound design process of computer keyboards

Hervé Lissek, Romain Boulandet

The poor acoustic comfort of usual commercial products is often perceived as annoying. Today, more and more companies have realized that sound can be an important component of product attributes and image. They are interested in having acoustic guidelines ...

2008

How to move from perception to design: application to keystroke sound

Hervé Lissek, Romain Boulandet

Nowadays, customers have legitimate requirements as regards quality that marketing and consumers departments attempt to satisfy. The sound is well-known to enhance or detract from our pleasure in possessing or using a product. Sound quality engineering is ...

2008

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