Who We Are?

A7hz – 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 – A7hz

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 A7hz. 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.

Jean-Frédéric Desjardins

Jean-Frédéric Desjardins

Eng. Acoustic and Vibrations Engineer

Mr. Jean-Frédéric Desjardins, a building mechanics engineer acquired, at the start of his career, a very good experience in building mechanics. By, he completed a training in noise and vibration control at master’s level in 2017 in order to perfect his already acquired knowledge. He then very quickly specialized in acoustics and soundproofing, which also allowed him to acquire good experience in this field. It is therefore able to assist all professionals both at the architectural and mechanical level. He is already working on several large-scale residential tower-to-condo projects in the Montreal region, commercial projects (office towers), institutional projects (school, seniors’ center, hospitals, courthouses, etc.)
He therefore offers clients expertise and added value to the projects assigned to him since he is able to quickly understand all the issues of the various disciplines involved in a project.

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 A7hz. His rigor at work ensures the realization of precise characterization measures. In parallel, Mr. Wahiche undergoes continuous training to become an engineer.

Valérie Toupin-Guay

Valérie Toupin-Guay

CPI. Acoustic and Vibrations Engineer Candidate

Valérie is a graduate of the École de technologie supérieure. She completed a bachelor’s degree in mechanical engineering. She also worked there as a research and development intern. Previously, she obtained her college diploma in aircraft maintenance technology. Having worked in this noisy environment, she developed a sensitivity on the subject of hearing loss. In addition, it seeks to improve the existing in order to reduce the environmental impacts of society while promoting comfort and utility. As a result, she joined the A7hz team as a research manager in a desire to participate in the reduction of noise pollution as well as to collaborate on innovation and democratization projects in the field of acoustics.

Sami Chabane

Sami Chabane

CPI. Acoustic and Vibrations Engineer Candidate

Mr. Sami Chabane graduated in acoustics and sound design from the University of Aix-Marseille. Following an internship in an acoustic design office in Paris, he developed an interest in the acoustics of rooms and buildings. Sami joined the A7hz team as a study manager in acoustics and vibration.

Rémi Llinares

Rémi Llinares

Eng. Acoustic and Vibrations professionnal

After specialized studies in acoustic engineering, and with an international experience as an acoustic engineer in Europe and Asia, Mr. Rémi Llinares joined the A7Hz team as a project and business development manager in the Maritime provinces. When he takes off his acoustician cap, he devotes his time to his passions of chocolate and music!

Nicolas Loi

Nicolas Loi

Accounting technician - Administration

Mr. Nicolas Loi is in charge of the accounting and part of the administration of A7hz. Trained in the south of France via the Accounting and Financial Management course (L3) and the Master 2, Accounting Control Audit (CCA), he is a great help in assisting the team both in Canada and in France.

Alexis Martin

Alexis Martin

Monitoring station manager - Internal coach - Acoustics and Vibration

Mr. Alexis Martin graduated from ETS (Maîtrise en Génie Électrique at CRITIAS) and École Centrale d’Électronique (Baccalauréat en Génie Électrique, Paris) in 2015. He has also trained in Non-Violent Communication and is a certified coach. Passionate about music, audio and electronics, he is responsible for the development of acoustic and vibration monitoring stations and an internal coach. His interests are diverse, and include audio, electronics, acoustics, signal processing, biomedical and occupational health and safety. He also organizes internal coaching sessions at A7hz.

Bertrand Teppe

Bertrand Teppe

CPI. Acoustic and Vibrations Engineer Candidate

Mr. Bertrand Teppe is completing his studies in mechanical engineering at ETS in Montreal. He grew up in France, where he obtained a Diplôme Universitaire de Technologie in Lyon. He did his 3rd year internship at A7hz and decided to specialize in acoustics and vibration. So he joined our team. His knowledge of construction noise and vibration monitoring projects is a major asset.

Germain Forget

Germain Forget

CPI. Acoustic and Vibrations Engineer Candidate

Mr. Germain Forget is a recent graduate of ESIM (École d’Ingénieurs Le Mans Université) in France. Germain joined the A7hz team as an acoustics and vibration design engineer. He is developing his XX skills by working mainly on XX projects.

Pierre Gentil

Chargé d'étude - Acoustique et Vibrations

Pierre Gentil is a graduate of ICAM – Institut Catholique d’Arts et Métiers. Following this, he had a number of experiences during which he developed a genuine interest in all aspects of acoustic design. Pierre joined the A7hz team as an acoustics and vibration project manager. He is developing his XX skills by working mainly on XX projects.