Who We Are?
Atelier 7hz – Acoustic and vibrations engineering
A high-level expertise at the cutting edge of the latest technologies
Multidisciplinary expertise in acoustic and vibration
Interest and openness to related fields
Creative, innovative and open-minded team
Experts considerate of other specialties
Constant research of innovation
Modern and calibrated instrumentation
Innovation regarding new measuring methods
Efficient work method
Integrated design or on-demand intervention
Customer satisfaction survey
Useful and optimized recommendations
A constant consideration of costs
Effective calculation and simulation codes
Proficiency with the latest software
The Team – Atelier 7hz

Raphaël Duée
Ing. - President/Manager - Acoustic and Vibrations
Over the past years, Mr. Raphaël Duée has acquired a multidisciplinary experience in the architectural, environmental, transportation and industrial acoustic and vibration fields. After being team leader for the engineering firm WSP (Décibel Consultants) and deputy manager of the engineering team of RATP, Mr. Duée now leads his own company Atelier 7hz. He has worked on a large set of projects such as acoustic optimization of residential and commercial projects, acoustic and vibration impact studies of railway lines, as well as the optimization of room acoustics, P.A. systems, interior insulation, HVAC systems, monitoring stations, etc. Mr. Duée took part in several research projects in the environmental acoustic and room acoustic domains.

Maxime Léger
Eng. - Acoustic and Vibrations Engineer

Mathieu Wahiche
Acoustic and Vibrations Professionnal

Djesone Gomis
Acoustic and Vibrations professionnal

Laila Mouahid
Accounting and administration assistant
Technical mastery of accounting, payroll and practical analysis within the reach of the company to ensure better service. Strong experience in the field with a good sense of adaptability and openness.

Estelle Merdrignac
Acoustic and Vibrations professionnal
After studying mechanical engineering in France, I worked for a mechanical and acoustic measurements laboratory in the field of transport in Paris. I am now joining the team to improve my skills in all areas of acoustics. My skills lie in acoustic and vibration measurements, analysis of measurement data, and project management. In my personal life, I am passionate about the arts in general and travel, which opens the mind and calls for discovery.

Jan Pienkowski
Acoustic and Vibrations Professionnal
Trained in physics and electroacoustic music at Concordia University in Montreal, Jan Pienkowski’s work experience spans over 20 years as a physicist, programmer, music composer, stage artist, sound engineer and teacher. His physics and programming projects led him to work for the ETS acoustic and vibration research laboratories (CRITIAS and ICAR), IREQ research laboratories at Hydro-Québec, Averna technologies and physics laboratories. McGill University, while his musical projects include works for the COP21 Summit of the United Nations in Paris, the British Council, the Society for Arts and Technology, the Montreal Opera and Place des arts. Jan brings his passion for everything related to audio, acoustics and technology to Atelier 7hz to continue developing projects in these areas.

Alexis Martin
Eng. Jr. - Project Manager - Junior Acoustic and Vibrations Engineer

Xavier Gaudreault
Acoustic and Vibrations Professionnal
Xavier Gaudreault is a physical measures technologist. His passion for audio naturally led him to specialize in acoustic and vibration engineering. He holds a DEC from CEGEP de La Pocatière. It ensures quality measurements in acoustics and vibrations and has developed its know-how in the management of permanent acoustic and vibration monitoring stations.

Denis Bissengué
Eng. Acoustic and Vibrations Engineer
Mr. Denis Bissengué has an engineering background in mechanical engineering, specializing in numerical analysis and simulation of vibratory phenomena and modeling of mechanical waves by the finite element method. He joined the Atelier 7hz team as an acoustics and vibration researcher, he is also the manager of our vibration stations.
His various experiences in the field of mechanical engineering and his rigor are major assets for the company.

Kamal Kesour
Eng. Acoustic and Vibrations Engineer
Kamal Kesour is responsible for studying acoustics and vibration at the company. Before joining Atelier 7Hz, Kamal was a postdoctoral fellow in the acoustics group of the University of Sherbrooke (GAUS); a leader in acoustics and vibration in Canada and North America. Mr. Kesour holds a Ph. D. in the field of acoustics and vibration from the University of Sherbrooke. He has more than five years of experience in acoustics and vibration, including noise control methods, the development of vibroacoustic prediction models and acoustic measurements. Mr. Kesour is the author of several scientific papers and serves as a reviewer for the Journal of Mechanical Systems and Signal Processing.