Who We Are?

Atelier 7hz – Acoustic and vibrations engineering

A high-level expertise at the cutting edge of the latest technologies

Recognized experts by the scientific community
Multidisciplinary expertise in acoustic and vibration
Interest and openness to related fields

Creative, innovative and open-minded team

Acoustic, a vocation or a passion
Experts considerate of other specialties
Constant research of innovation

Modern and calibrated instrumentation

The use of a suitable measuring instrumentation
Innovation regarding new measuring methods

Efficient work method

Ergonomic and clear reports
Integrated design or on-demand intervention
Customer satisfaction survey

Useful and optimized recommendations

Solutions tailored to the needs of the customer
A constant consideration of costs

Effective calculation and simulation codes

Development of our own calculation tools
Proficiency with the latest software

The Team – Atelier 7hz

Raphaël Duée

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

Maxime Léger

Eng. - Acoustic and Vibrations Engineer

Mr. Maxime Léger has acquired, over the past five years, very good experience in the engineering profession and in project management. After being a mechanical engineer and project manager at GCM Consultants and Via Rail Canada, he now works at Atelier 7hz as a project manager in acoustics and vibrations. His technical and organizational skills are major assets for the company.
Mathieu Wahiche

Mathieu Wahiche

Acoustic and Vibrations Professionnal

Passionate about the fields of acoustics and audio for several years, Mr. Mathieu Wahiche is a technician and equipment manager at Atelier 7hz. Its rigor of work ensures the realization of precise characterization measures. In parallel, Mr. Wahiche undergoes continuous training to become an engineer.
Djesone Gomis

Djesone Gomis

Acoustic and Vibrations professionnal

M. Djesone Gomis is now part of the team. His knowledge in acoustic and vibrations and his education abroad are very useful for the team.
Laila Mouahid

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

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

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

Alexis Martin

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

Alexis completed a Master’s degree in Electrical Engineering at the CRITIAS of the ETS in Montreal and graduated a Bachelor’s degree in Electrical Engineering at École Centrale d’Électronique (Paris, France) in 2015, with a specialization in embedded systems. Passionate about music, audio and electronics, he took an electroacoustic course at the National Conservatory of Arts and Crafts in Paris. He has acquired R&D experience at the Institute for Research and Coordination Acoustique / Musique (IRCAM). Through his research project related to the industrial sector, his interests have diversified and include audio, electronics, acoustics, signal processing, biomedical, health and safety of workers.
Xavier Gaudreault

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

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

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.