Publication

Low frequency sound field reconstruction in a non-rectangular room using a small number of microphones

Publications associées (43)

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

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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

In-Vitro Platform to study Ultrasound as Source for Wireless Energy Transfer and Communication for Implanted Medical Devices

Catherine Dehollain, Eric Meurville, Patrick Favre, Francesco Mazzilli, Michela Peisino

A platform to study ultrasound as a source for wireless energy transfer and communication for implanted medical devices is described. A tank is used as a container for a pair of electroacoustic transducers, where a control unit is fixed to one wall of the ...

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Sound Field Reconstruction: An Improved Approach For Wave Field Synthesis

Martin Vetterli, Mihailo Kolundzija, Christof Faller

Wave field synthesis (WFS) is a prevalent approach to multiple-loudspeaker sound reproduction for an extended listening area. Although powerful as a theoretical concept, its deployment is hampered by practical limitations due to diffraction, aliasing, and ...

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Multiple harmonic sound sources separation in the under-determined case based on both goniometric and beamforming approaches

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Usually acoustic beamformer or directive microphones are used in order to focus on known potential locations emitting sounds so as to identify and extract their major noise components. However performances of these techniques depend on the number of microp ...

2009

Thanks to geolocalized remote control : the sound will follow

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Dematerialized music and MP3 players offer to the user the possibility of carrying his musical content everywhere. However, at home, the music collection is generally not centralized, split between different rooms and audio supports (CDs, MP3s, etc). In th ...

2008

Spatio-temporal analysis of spontaneous speech with microphone arrays

Guillaume Lathoud

Accurate detection, localization and tracking of multiple moving speakers permits a wide spectrum of applications. Techniques are required that are versatile, robust to environmental variations, and not constraining for non-technical end-users. Based on di ...

EPFL2007

Reduced Localizability in Sequences of Narrowband Noise Bursts

Christof Faller, Fritz Menzer

The precedence effect describes perceived localization dominance of a sound event over a sound event arriving 2 to 50 ms later. A related effect, occurring with sequences of 100 ms long narrowband noise bursts, is described. In contrast to classical preced ...

2007

Spatio-Temporal Analysis of Spontaneous Speech with Microphone Arrays

Guillaume Lathoud

IDIAP2006

Spatio-Temporal Analysis of Spontaneous Speech with Microphone Arrays

Guillaume Lathoud

École Polytechnique Fédérale de Lausanne2006

The plenacoustic function and its applications

Thibaut Ajdler

This thesis is a study of the spatial evolution of the sound field. We first present an analysis of the sound field along different geometries. In the case of the sound field studied along a line in a room, we describe a two-dimensional function characteri ...

EPFL2006

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