References of "Embrechts, Jean-Jacques"
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See detailAdding 3D Sound to 3D Cinema: Identification and Evaluation of Different Reproduction Techniques
André, Cédric ULg; Embrechts, Jean-Jacques ULg; Verly, Jacques ULg

in Audio Language and Image Processing (ICALIP), 2010 International Conference on (2010, November 24)

Very little research has been conducted so far into the general problem of producing a 3D soundscape consistent with the visual content of a 3D-stereoscopic movie. First, the following 3D sound ... [more ▼]

Very little research has been conducted so far into the general problem of producing a 3D soundscape consistent with the visual content of a 3D-stereoscopic movie. First, the following 3D sound reproduction techniques are reviewed: Vector Base Amplitude Panning (VBAP), binaural and transaural techniques, Wave Field Synthesis (WFS) and Ambisonics. Second, the new challenges of 3D cinema are introduced. Third, we reconsider each 3D audio technique in the light of these challenges. We find that, at least in theory, a completely personalized soundscape is needed and that, due to various technical reasons, only binaural reproduction through headphones is able to accurately produce a 3D soundscape consistent with a 3D-stereo movie in a theater environment. [less ▲]

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See detailEffect of ground scattering on noise barriers efficiency
Billon, Alexis ULg; Nemerlin, Jean ULg; Embrechts, Jean-Jacques ULg

Conference (2010, April 29)

Noise barriers are popular devices to mitigate the impact of roads or railway noise on the community. So, heavy works have been devoted to improve their efficiency, both through their shapes and their ... [more ▼]

Noise barriers are popular devices to mitigate the impact of roads or railway noise on the community. So, heavy works have been devoted to improve their efficiency, both through their shapes and their building materials. In this work, the effect of ground scattering on the insertion loss created by a straight hard thin screen is investigated using a 1/10th scale model. The ground possesses thus a repetitive structure to induce scattering. Measurements are conducted on both sides of the screen and comparisons are drawn with a flat ground configuration. [less ▲]

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See detailReal-time auralization of industrial noise
Embrechts, Jean-Jacques ULg; Bos, Lionel ULg

in Proceedings of the Institute of Acoustics & Belgian Acoustical Society (2010, April)

A real-time and interactive auralization system has been developed within the research project Auralias (www.auralias.be). Originally conceived for architectural acoustics applications, this system is now ... [more ▼]

A real-time and interactive auralization system has been developed within the research project Auralias (www.auralias.be). Originally conceived for architectural acoustics applications, this system is now applied to auralize the effect of noise reduction solutions in industrial halls. Some specific characters of this kind of problems are first identified: several sources with intermittent noise emission, rectangular hall geometries, quite reverberant spaces, sound level calibration needed. A protocol for the application of the auralizer is then tested on an example, from the room acoustics model to the final sound rendering. [less ▲]

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See detailRecherche des intersections rayon-surfaces par classement préférentiel dans un logiciel d'acoustique des salles
Lesoinne, Stéphane ULg; Embrechts, Jean-Jacques ULg

in Actes du 10è Congrès Français d'Acoustique (2010, April)

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See detailEvaluation du temps de mélange à partir de la distribution temporelle du libre parcours dans une salle
Billon, Alexis ULg; Dirix, Simon; Embrechts, Jean-Jacques ULg

in Actes du 10ème Congrès Français d'Acoustique (2010, April)

Dans un espace clos où se mélangent les nombreuses ondes réfléchies, diffusées et diffractées par les surfaces, la propagation de l’énergie sonore peut être décomposée en deux étapes: tout d’abord, un ... [more ▼]

Dans un espace clos où se mélangent les nombreuses ondes réfléchies, diffusées et diffractées par les surfaces, la propagation de l’énergie sonore peut être décomposée en deux étapes: tout d’abord, un processus déterministe pour lequel il est possible d’identifier individuellement chaque contribution, suivi d’un processus stochastique pour lequel les contributions doivent être globalisées et vues comme un processus quasi-aléatoire. Le seuil de transition entre les deux comportements est matérialisé dans l’échogramme par le temps de mélange. Dans cette étude, le temps de mélange est analysé en regard de la distribution temporelle du libre parcours. Celle-ci est obtenue numériquement à l’aide du programme de tir de rayons large bande Salrev. Dans un premier temps, le mélange est identifié au travers du caractère asymptotique de cette distribution. Le temps de mélange est alors défini comme la durée (mesurée à partir de l’instant d’émission au départ de la source) nécessaire pour atteindre ce comportement asymptotique. A partir de cette définition du temps de mélange sont étudiées les influences de divers paramètres géométriques et acoustiques. Ensuite, trois applications pour des salles de concert sont réalisées. Cette étude montre que les valeurs obtenues pour le temps de mélange convergent vers celles observées expérimentalement, à condition que les parois de la salle soient suffisamment diffusantes. [less ▲]

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See detailIntroduction to colorimetry
Embrechts, Jean-Jacques ULg

Learning material (2010)

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See detailAdding sound to movies: Historical trends and new challenges of 3D cinema
André, Cédric ULg; Embrechts, Jean-Jacques ULg; Verly, Jacques ULg

Conference (2009, December 03)

Very little research has been done so far in producing 3D sound and audio that are consistent with the 3D stereo video being viewed by the spectator. After a review of the currently used techniques for ... [more ▼]

Very little research has been done so far in producing 3D sound and audio that are consistent with the 3D stereo video being viewed by the spectator. After a review of the currently used techniques for theater sound reproduction, this talk presents new challenges of 3D cinema in terms of sound reproduction and analyse which known 3D audio techniques are able to tackle those challenges. [less ▲]

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See detailAn interactive and real-time 3D auralization system for room acoustics (the AURALIAS project)
Bos, Lionel ULg; Embrechts, Jean-Jacques ULg

in Proceedings of the 3D Stereo Media congress, Liege 2010 (2009, December)

Detailed reference viewed: 125 (12 ULg)
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See detailObjective study of spatial attributes in the room impulse response's late part and their relevance for auralization
Billon, Alexis ULg; Embrechts, Jean-Jacques ULg

in Proceedings of the Euronoise 2009 Congress (2009, October)

Detailed reference viewed: 43 (8 ULg)
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See detailSize-adaptive spherical receptor acceleration method for acoustical ray tracing
Lesoinne, Stéphane ULg; Embrechts, Jean-Jacques ULg

in Proceedings of the 5th Forum Acusticum "Acoustics '08" (2008, July)

Detailed reference viewed: 44 (18 ULg)
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See detailMathematical modelization of reduced luminance coefficients for dry road surfaces
Debergh, Nathalie; Embrechts, Jean-Jacques ULg

in Lighting Research & Technology (2008), 40

Detailed reference viewed: 46 (5 ULg)
See detailAcoustique du bâtiment
Embrechts, Jean-Jacques ULg

Learning material (2008)

Detailed reference viewed: 68 (5 ULg)
See detailAcoustique appliquée: fondements et lutte contre le bruit
Embrechts, Jean-Jacques ULg

Learning material (2008)

Detailed reference viewed: 100 (6 ULg)
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See detailA moving listener in a virtual audio environment with particularly irregular reverberation decay
Embrechts, Jean-Jacques ULg; Lesoinne, Stéphane ULg; Werner, Nicolas

in Proceedings of the 28th Symposium on Information Theory in the Benelux (2007)

Detailed reference viewed: 34 (9 ULg)