Alain Dufaux
Operational Director
EPFL CHC
EPFL Jordils 41
1025 St-Sulpice VD
+41 21 693 59 57
+41 21 693 69 67
Office:
JORD 0 125
EPFL
>
VPA-AVP-CP
>
CHC
>
CHC-GE
Web site: Web site: https://metamedia.epfl.ch
+41 21 693 59 57
EPFL
>
CDH
>
CDH-SHS
>
SHS-ENS
Fields of expertise
Speech & Audio Algorithms
Pattern Recognition
Low-power DSP systems
Technologies for Multimedia Archives
Project Management & Team Management
Mission
Manager of Operations, MetaMedia Center (MMC)Biography
After obtaining a diploma of electrical engineer in 1994 at EPFL (Swiss Federal Institute of Technology, Lausanne, Switzerland), Alain Dufaux has joined the Institute of Microtechnology (IMT) of the University of Neuchâtel, in the team of Professor Pellandini (Electronics and Signal Processing Laboratory). His research activities were first dedicated to speech compression and recognition, and then, he specialized in audio processing. His PhD thesis, presented in 2001, concerned detection and recognition of impulsive sound signals.Still in 2001, Alain Dufaux participated to the Launch of the company Dspfactory SA in Marin, emerged from Dspfactory Ltd. in Canada. Active in the field of ultra-low-power DSP processors for applications like hearing aids, consumer audio or medical devices, this company was acquired in 2004 by the worldwide company AMI Semiconductor. During 6 years, Alain occupied several positions:
- Head of signal processing group in the Advanced Application department;
- Senior member of the Applied DSP and embedded software group in Canada, developing low-power audio algorithms;
- Signal processing specialist in the european customer support team, especially active in trainings and tutorials dedicated to low-delay multirate filterbanks and low-power signal processing techniques for hearing aids.
Alain was back at EPFL in November 2006, at first as head of the Vision & Embedded DSP Group in the Laboratory of Microengineering for Manufacturing (LPM). In this role, most of the effort was dedicated to team management, definition of research projects or partnerships with industries, project follow-up, and support or co-direction of the PhD thesis of the lab. In October 2008, Alain also became responsible for the management of the Micro-assembly group of the LPM, and was enrolled as co-lecturer for the course "Méthodes de Production".
In Spring 2011, Alain Dufaux has joined the MetaMedia Center (MMC) recently launched by the Vice-Presidence for Innovation and Valorization (VPIV). Acting as project manager, his activity is split between the operational tasks of the Montreux Jazz Digital Project, and the numerous innovation projects initiated by the MMC in partnership with the labs of EPFL working around acoustics, signal processing or multimedia.
Since June 2014, Alain is the operation & development director of the Metamedia Center.
Publications
Selected publications
M. Bellino, E. Meurville, L. Bolomey & A. Dufaux SPARC European Project Booklet, June 2007 |
Multi-agent System for Camera-based Environment Awareness in Vehicles |
H. Sheikhzadeh, E. Cornu, R. Brennan, N. Destrez, A. Dufaux US Patent #7139707, AMI Semiconductor, November 2006 |
Method and System For Real-Time Speech Recognition |
E. Cornu, A. Dufaux, D. Hermann EUSIPCO 2006, European Signal Processing Conference, Florence, IT, September 2006. |
A High Performance, Low Latency, Low Power Audio Processing System For Wideband Speech Over Wireless Links |
J. Johnson, D, Hermann, M. Witter, E. Cornu, R. Brennan, A. Dufaux ICASSP'06, IEEE International Conference on Acoustics, Speech and Signal Processing, Toulouse, France, May 2006 |
An Ultra-Low Power Subband-Based Electronic Stethospcope |
R. Brennan, N. Destrez, A. Dufaux , H. Sheikhzadeh, E. Cornu CA Patent #2359544, Dspfactory Ltd., April 2003 |
Low-Resource Real-Time Speech Recognition System Using an Oversampled Filterbank |
A. Dufaux, K. Tam, H. Sheikhzadeh, R. Brennan, T. Schneider International Hearing Aid Research Conference (IHCON 2002), Lake Tahoe, California, US, Aug. 2002. |
Single-Microphone Noise Reduction for Hearing Aids : Low-power and low-delay DSP Implementation using the Ephraim & Malah Algorithm |
E. Cornu, N. Destrez, A. Dufaux, H. Sheikhzadeh, R. Brennan ICASSP'02, IEEE International Conference on Acoustics, Speech and Signal Processing, Orlando, California, US, May 2002 |
An Ultra Low Power, Ultra Miniature Voice Command System Based on Hidden Markov Models |
A. Dufaux PhD Thesis, Facult� des Sciences de l'Universit� de Neuch�tel, Switzerland, 2001 |
Detection and Recognition of Impulsive Sound Signals |
S. Grassi, M. Matthey, G. Biundo, A. Dufaux, M. Ansorge, F. Pellandini Proc. of Signal Processing 2000 Workshop, Poznan, Poland, Oct. 13th, 2000, pp. 7-12. |
A Low-Complexity Variable Bit Rate Speech Coder for Portable Storage Applications |
A. Dufaux, L. Besacier, M. Ansorge, F. Pellandini Proceedings of EUSIPCO 2000, European Signal Processing Conference 2000, Tampere, FL, September 2000. |
Automatic Sound Detection and Recognition for Noisy Environment |
S. Grassi, L. Besacier, A. Dufaux, M. Ansorge, F. Pellandini Proceedings of EUSIPCO 2000, European Signal Processing Conference 2000, Tampere, Finland, September 2000 |
Influence of GSM Speech Coding on the Performance of Text-Independent Speaker Recognition |
L. Besacier, S. Grassi, A. Dufaux, M. Ansorge, F. Pellandini ICASSP 2000, International Conference on Acoustics, Speech, and Signal Processing, Istanbul, Turkey, June 5-9, 2000 |
GSM Speech Coding and Speaker recognition |
S. Grassi, A. Dufaux, L. Besacier, M. Ansorge, F. Pellandini Proceedings of the International COST 254 Workshop on Friendly Exchanging Through the Net, pp. 117-122, Bordeaux, F, March 23-24, 2000. |
Speaker Recognition on Compressed Speech |
S. Grassi, L. Besacier, A. Dufaux, M. Ansorge, F. Pellandini Proc. of COST 254, International Workshop on Intelligent Communication Technologies and Applications, with Emphasis on Mobile Communication, Neuch�tel, CH, May 5-7, 1999, pp. 307-311 |
Influence of GSM Speech Coding Algorithms on the Performance of Text-Independant Speaker Identification |
L. Besacier, A. Dufaux, M. Ansorge, F. Pellandini Proceedings of COST 254, International Workshop on Intelligent Communication Technologies and Applications, with Emphasis on Mobile Communication, Neuch�tel, CH, May 5-7, 1999. |
Automatic Sound Recognition Relying on Statistical Methods, with Application to Telesurveillance |
D. Manetti, A. Dufaux, E. Meurville, M. Ansorge, F. Pellandini, P. Ryser, D. Wieser Proceedings of COST 254, International Workshop on Intelligent Communication Technologies and Applications, with Emphasis on Mobile Communication, Neuch�tel, CH, May 5-7, 1999. |
Audio Coder for Telesurveillance Applications with Real Time Implementation on a Multimedia DSP |
A. Dufaux, L. Besacier, M. Ansorge, F. Pellandini Proceedings of ASA 99, 137th Meeting of the Acoustical Society of America and Forum Acusticum 99, Berlin, G, March 14-19, 1999. |
Automatic Detection and Classification of Wide-band Acoustic Signals |
S. Grassi, A. Dufaux, M. Ansorge, F. Pellandini ICASSP'97, IEEE International Conference on Acoustics, Speech and Signal Processing, Vol. 3, pp. 1707-1710, Munich, G, April 21-24, 1997. |
Efficient Algorithm to Compute LSP Parameters from 10-th order LPC Coefficients |
A. Dufaux "Homme, Technique, Environnement" Project, EPFL Internal Report, 1994. |
Anatomie et Physiologie des Radios Locales Suisses |
Teaching & PhD
Teaching
Humanities and Social Sciences Program