MJM ACOUSTICAL CONSULTANTS INC. is an acoustical consulting firm practicing in Montreal since 1984. Its founder and principal consultant, architect Michel Morin brings over 38 years of experience as a consultant in acoustics and noise control in the private sector. In December 2016, Mr. Nicolas Lévêque, P.Eng , who had been with the firm since 2008, became President and sole owner of MJM and will ensure its continuity for years to come.

MJM is known for the number and variety of projects in which it has participated, for the research projects in acoustics and noise control that it has undertaken and whose reports have been distributed worldwide, as well as for the technical support it delivers to industries wishing to improve the acoustical performance of their products.

MJM has developed many software applications for acoustical measurement and analysis including the software RÉFLEX used in the acoustical design of auditoria, theaters, amphitheaters concert halls and classrooms. RÉFLEX is a powerful tool which allows analyzing and modifying the geometry of any room modelled in three dimensions using AUTOCAD versions 10 and later. MJM has also purchased the software licenses for the acoustical programs CADNA/A, ODÉON and INSUL.


During its 33 years of existence, MJM has participated in the design and construction of projects varying in nature and in size whose value ranges from 20,000.00 $ to 485 M$. The services offered by MJM cover all aspects of acoustics and noise control related to buildings and the environment, as well as industrial noise control. Among the 1500 and over projects of interest in which MJM has participated, there are, to mention a few:

  • Sports amphitheaters and cultural centers such as the Bell Centre (in downtown Montreal), La Place Bell (in Laval, Québec), the Phi Center, the Théâtre des Deux Rives, the Théâtre de Baie-Comeau and the Imax Cinema in Old Port;
  • Many auditoriums and theaters with seating capacity between 225 and 900 places among which the Salle de spectacles de Baie Comeau, Gérald-Godin College’s auditorium, the Dell’Arte complex, as well as acoustical analysis of existing theaters such as the Saydie Bronfman Center and Face Music School’s auditorium to improve the listening conditions within them. 
  • Office buildings such as the Bell Campus in Nun’s Island, Place Montréal Trust, 1250 Blvd. René-Lévesque West, La Cité du Commerce Électronique; the renovation/reorganization of the offices of Hydro-Québec (1M ft2 in 4 buildings), Canadian National Railways (500,000 ft2) PSP Investments (4 floors at 1250 René-Lévesque West), the relocation of Air Canada main offices in Dorval;
  • Institutional buildings such as the Research Center of the Centre Hospitalier de l’Université de Montréal (CRCHUM, 485M$), the Jean-Noel Desmarais Pavilion of the Montreal Fine Arts Building, the Lassonde Pavilion of l’École Polytechnique de Montréal, the libraries of Concordia University, Outremont, Dollard-des-Ormeaux and Park-Extension;
  • Noise climate assessment for many residential sites such as Place L’Acadie (1500 dwellings), 1800 René-Lévesque (450 dwellings), Union Park (220 dwellings), Tour des Canadiens (534 dwellings);
  • Residential projects totaling more than 30,000 dwellings built by renowned builders such as Prével, Proment, Canderel, Devimco: 21e Arrondissement, Lowney sur ville, Le Séville, Évolo, Sommets sur le Fleuve, Tour des Canadiens 1, District Griffin Îlots 9 and 10, etc.
  • Industrial Plants such as C.E. Zinc, Circuit Foil America, Jet engine test cells for Royal Air Maroc in Casablanca and for Pratt and Whitney in Longueuil;


MJM provides clear recommendations which can be easily put into place using commonly available materials often distributed by a large number of suppliers. Our recommendations are based on the technical knowledge acquired during our 33 years of existence, through measurements in laboratory or in situ and through many research projects and scientific studies carried out on behalf of the Canada Mortgage and Housing Corporation (CMHC) in the laboratories of the National Research Council of Canada (NRC) and in the Domtar Acoustical Laboratory leased and operated by MJM on an exclusive basis from 1992 to 2008. MJM research reports have been distributed all over the world, more specifically in United States, Japan, Europe, and Australia: they are available to the public on our web site and can be downloaded free of charge.

Sharing with the public and the scientific community the knowledge acquired by MJM through research projects dedicated to acoustics and noise control is what sets us apart from the other acoustical consulting firms. Amongst other things, it led to the creation of the new ASTM E 2964-14 standard for the measurement of the sound isolation provided by doors: the measurement method outlined in the standard was developed by MJM in 1991 in the course of a research project subsidized by the CMHC. It is also a testimony to our rigor, objectivity, and integrity as well as a commitment to provide uncompromised professional services to our clients.


MJM dedicates 100% of its resources to acoustical consulting and noise control and is totally independent of any supplier or manufacturer of acoustical materials and vibration isolators. This ensures our clients that they benefit from the high