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Jean-Jacques Embrechts - Publications ORBI
Kaiser, X., Brandt, S., Meys, B., Plom, N., & Embrechts, J.-J. (2017). Attenuation measurements inside and at the output of a passive silencer equipped with parallel absorbing baffles. Proceedings of meetings on acoustics, 30(030006 doi: 10.1121/2.0000600).
Peer reviewed
The mock-up of a great passive silencer used for noise attenuation in industrial applications has been designed and tested in laboratory. This mock-up consists of three metal casing containing the noise ...
Schmitz, T., & Embrechts, J.-J. (2016). A new toolbox for the identification of diagonal Volterra kernels allowing the emulation of nonlinear audio devices. In T., Schmitz, International Congress on Acoustics : ICA, Argentine 5-9 Septembre 2016.
Numerous audio systems are nonlinear. It is thus of great importance to study them and understand how they work. Volterra series model and its subclass (cascade Hammerstein-Wiener model) are usual ways to ...
Osmalsky, J., Van Droogenbroeck, M., & Embrechts, J.-J. (2016). Enhancing Cover Song Identification with Hierarchical Rank Aggregation. Proceedings of the 17th International for Music Information Retrieval Conference (pp. 136-142).
Peer reviewed
Abstract Cover song identification involves calculating pairwise similarities between a query audio track and a database of reference tracks. While most authors make exclusively use of chroma features, recent ...
Osmalsky, J., & Embrechts, J.-J. (2016). Effects of acoustic degradations on cover song identification systems. International Congress on Acoustics: ICA 2016.
Cover song identification systems deal with the problem of identifying different versions of an audio query in a reference database. Such systems involve the computation of pairwise similarity scores ... ...
Osmalsky, J., Embrechts, J.-J. (Other coll.), Foster, P. (Other coll.), & Dixon, S. (Other coll.). (2015). Combining Features for Cover Song Identification. 16th International Society for Music Information Retrieval Conference.
Peer reviewed
In this paper, we evaluate a set of methods for combining features for cover song identification. We first create multiple classifiers based on global tempo, duration, loudness, beats and chroma average ...
Duthoit, F., & Embrechts, J.-J. (2015). Description of the research project CIMEDE for the industrial construction of evolutionary, sustainable and economic houses. Proceedings of the Euronoise 2015 Congress (pp. 961-966).
CIMEDE is a research project supported by the Region of Wallonia (Belgium). It stands for CIMEDE “Construction Industrielle de Maisons Evolutives, Durables et Economiques – industrial construction of ...
Embrechts, J.-J. (2015). Measurement of 3D Room Impulse Responses with a Spherical Microphone Array. Proceedings of the Euronoise 2015 Congress (pp. 143-148).
Directional room impulse responses (DRIRs) are composed of the sound contributions reaching a given location in the room from a well-defined direction in space. DRIRs can be useful in many applications, such ...
Embrechts, J.-J. (2014). A Geometrical Acoustics Approach Linking Surface Scattering and Reverberation in Room Acoustics. Acta Acustica United with Acustica, 100(5), 864-879.
Peer reviewed (verified by ORBi)
A general model of the influence of surface scattering on the reverberation time would have several applications in room acoustics. Such a model is not yet available, and it is the purpose of this paper to ...
Osmalsky, J., Van Droogenbroeck, M., & Embrechts, J.-J. (2014). Performances of low-level audio classifiers for large-scale music similarity. International Conference on Systems, Signals and Image Processing (pp. 91-94).
Peer reviewed
This paper proposes a survey of the performances of binary classifiers based on low-level audio features, for music similarity in large-scale databases. Various low-level descriptors are used individually and ...
Schmitz, T., & Embrechts, J.-J. (2014). Improvement in non-linear guitar loudspeaker sound reproduction. International Conference on Systems, Signals and Image Processing.
Peer reviewed
This paper proposes a study of the accuracy of a guitar amplifier loudspeaker simulation. The simulation is based on a non-linear convolution of a signal using Volterra kernels, which are measured in anechoic ...
André, C., Corteel, E., Embrechts, J.-J., Verly, J., & Katz, B. F. G. (2014). Subjective Evaluation of the Audiovisual Spatial Congruence in the Case of Stereoscopic-3D Video and Wave Field Synthesis. International Journal of Human-Computer Studies, 72(1), 23-32.
Peer reviewed (verified by ORBi)
While 3D cinema is becoming increasingly established, little effort has focused on the general problem of producing a 3D sound scene spatially coherent with the visual content of a stereoscopic-3D (s-3D) movie ...
André, C., Corteel, E., Embrechts, J.-J., Verly, J., & Katz, B. F. G. (2013). A New Validated Method for Improving the Audiovisual Spatial Congruence in the Case of Stereoscopic-3D Video and Wave Field Synthesis. 3D Imaging (IC3D), 2013 International Conference on.
Peer reviewed
While 3D cinema is becoming increasingly established, little effort has focused on the general problem of producing a 3D sound scene spatially coherent with the visual content of a stereoscopic-3D (s-3D) movie ...
Osmalsky, J., Pierard, S., Van Droogenbroeck, M., & Embrechts, J.-J. (2013). Efficient database pruning for large-scale cover song recognition. International Conference on Acoustics, Speech, and Signal Processing (ICASSP). IEEE.
Peer reviewed
This paper focuses on cover song recognition over a large dataset, potentially containing millions of songs. At this time, the problem of cover song recognition is still challenging and only few methods have ...
Billon, A., & Embrechts, J.-J. (2013). A Diffraction Model for Acoustical Ray-Tracing Based on the Energy Flow Lines Concept. Acta Acustica United with Acustica, 99, 260-267.
Peer reviewed (verified by ORBi)
Geometrical acoustics models are currently the most popular prediction tools in room-acoustics due to their low computing load. However, they seldom take into account the diffraction occurring at free edges ...
André, C., Embrechts, J.-J., Verly, J., Rébillat, M., & Katz, B. F. G. (2012). Sound for 3D Cinema and the Sense of Presence. In M. A., Nees, B. N., Walker, & J., Freeman (Eds.), Proceedings of the 18th International Conference on Auditory Display.
Peer reviewed
While 3D cinema is becoming more and more established, little effort has focused on the general problem of producing a 3D sound scene spatially coherent with the visual content of a stereoscopic-3D (s-3D ...
Osmalsky, J., Embrechts, J.-J., Van Droogenbroeck, M., & Pierard, S. (2012). Neural networks for musical chords recognition. Journées d'informatique musicale (pp. 39-46).
Peer reviewed
In this paper, we consider the challenging problem of music recognition and present an effective machine learning based method using a feed-forward neural network for chord recognition. The method uses the ...
Embrechts, J.-J. (2011, November 23). Microphone arrays fundamentals. Paper presented at Journée ABAV "Multiple microphones systems", Liège, Belgique.
Microphone arrays are essentially directional sensors. They are therefore mainly used for locating, identifying, isolating, measuring and recording individual sound sources. The main principles governing the ...
Evrard, M., André, C., Verly, J., Embrechts, J.-J., & Katz, B. F. G. (2011, October 20). Object-Based Sound Re-Mix for Spatially Coherent Audio Rendering of an Existing Stereoscopic-3D Animation Movie. Paper presented at 131th AES Convention, New York, NY, USA.
While 3D cinema is becoming more established, little effort has focused on the general problem of producing a 3D sound scene spatially coherent with the visual content of a stereoscopic-3D (s-3D) movie. The ...
Billon, A., & Embrechts, J.-J. (2011). Numerical evidence of mixing in rooms using the free path temporal distribution. Journal of the Acoustical Society of America, 130(3), 1381–1389.
Peer reviewed (verified by ORBi)
The ergodic propriety of a room has strong effects on its reverberation. If the room is ergodic, the reverberation can be broken up in two steps: a deterministic process followed by a stochastic one. The late ...
Evrard, M., André, C., Embrechts, J.-J., & Verly, J. (2011, February 23). 3D Audio Acquisition and Reproduction Systems. Paper presented at Journée ABAV : « Qui fait quoi dans la recherche acoustique en Belgique ? », Neder-over-Heembeek, Belgium.
This presentation introduces two different research projects dealing with 3D audio for 3D-stereoscopic movies. The first project “3D audio acquisition for real time applications” studies the best method for ...
Embrechts, J.-J., & Billon, A. (2011). Theoretical Determination of the Random-Incidence Scattering Coefficients of Infinite Rigid Surfaces with a Periodic Rectangular Roughness Profile. Acta Acustica United with Acustica, 97, 607-617.
Peer reviewed (verified by ORBi)
An exact solution is developed for the sound field reflected by an infinite rigid rough surface with a periodic rectangular profile. The random-incidence scattering coefficient of this surface is derived from ...
André, C., Embrechts, J.-J., & Verly, J. (2010). Adding 3D Sound to 3D Cinema: Identification and Evaluation of Different Reproduction Techniques. Audio Language and Image Processing (ICALIP), 2010 International Conference on.
Peer reviewed
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 ...
Billon, A., Nemerlin, J., & Embrechts, J.-J. (2010, April 29). Effect of ground scattering on noise barriers efficiency. Paper presented at Noise in built environment, Ghent, Belgium.
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 ...
Billon, A., Dirix, S., & Embrechts, J.-J. (2010). Evaluation du temps de mélange à partir de la distribution temporelle du libre parcours dans une salle. Actes du 10ème Congrès Français d'Acoustique (pp. 6).
Peer reviewed
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 ...
Embrechts, J.-J., & Bos, L. (2010). Real-time auralization of industrial noise. Proceedings of the Institute of Acoustics & Belgian Acoustical Society (pp. 277-284).
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 ...
André, C., Embrechts, J.-J., & Verly, J. (2009, December 03). Adding sound to movies: Historical trends and new challenges of 3D cinema. Paper presented at 3D Stereo Media, Liège, Belgique.
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 ...
Dardenne, R., Embrechts, J.-J., Van Droogenbroeck, M., & Werner, N. (2006). A video-based human-computer interaction system for audio-visual immersion. Proceedings of SPS-DARTS (pp. 23-26).
Peer reviewed
This paper describes the video and audio tools that have been implemented in a real-type system to immerse a user into a virtual scene. The video tools include motion detection, skin detection by ...
Cox, T. J., Dalenback, B.-I., D'Antonio, P., Embrechts, J.-J., Jeon, J. Y., Mommertz, E., & Vorländer, M. (2006). A tutorial on scattering and diffusion coefficients for room acoustic surfaces. Acta Acustica United with Acustica, 92(1, JAN-FEB), 1-15.
Peer reviewed (verified by ORBi)
There is a need to be able to quantify how sound is reflected from a surface, in terms of how it is spatially dispersed. In recent years, diffusion and scattering coefficients have been developed to enable ...
Embrechts, J.-J., De Geetere, L., Vermeir, G., Vorlander, M., & Sakuma, T. (2006). Calculation of the random-incidence scattering coefficients of a sine-shaped surface. Acta Acustica United with Acustica, 92(4, JUL-AUG), 593-603.
Peer reviewed (verified by ORBi)
Random-incidence scattering coefficients obtained by measurement in reverberation chambers (ISO 17497-1) for a particular sine-shaped surface are compared with theoretical results. Holford-Urusovskii's method ...
Dardenne, R., Embrechts, J.-J., Van Droogenbroeck, M., & Werner, N. (2005). The CINEMA Project: A Video-Based Human-Computer Interaction System for Audio-Visual Immersion. ERCIM News, 62, 45-46.
Numerous studies are currently focusing on the modelling of humans and their behavior in 3D environments. The CINEMA project has similar goals but differentiates itself by aiming at enhanced interactions ...
Vorländer, M., Embrechts, J.-J., De Geetere, L., Vermeir, G., & de Avelar Gomes, M. H. (2004). Case studies in measurement of random incidence scattering coefficients. Acta Acustica United With Acustica, 90(5, SEP-OCT), 858-867.
Peer reviewed (verified by ORBi)
In this work measurements of random-incidence scattering coefficients in three laboratories are compared. The sample geometry is sinusoidal. These surfaces are geometrically identical, but they were ...
Stan, G.-B., Embrechts, J.-J., & Archambeau, D. (2002). Comparison of different impulse response measurement techniques. Journal of the Audio Engineering Society, 50(4), 249-262.
Peer reviewed (verified by ORBi)
The impulse response of an acoustical space or transducer is one of its most important characterizations. In order to perform the measurement of their impulse responses, four of the most suitable methods are ...
Embrechts, J.-J. (2000). Broad Spectrum Diffusion Model for Room Acoustics Ray-Tracing Algorithms. Journal of the Acoustical Society of America, 107(4), 2068-81.
Peer reviewed (verified by ORBi)
Geometrical acoustics methods have already been transformed to account for diffusely reflecting boundaries. In randomized ray-tracing algorithms, the sound rays are either specularly reflected or scattered ...