IUT Civil Engineering and Sustainable Constructions

With 30 years of experience in the acoustics of conference rooms and multimedia integration, the acoustic firm Tisseyre + Associés has developed a joint working methodology with the architect. Indeed, the needs related to the operation of the rooms structure the choice of multimedia equipment. However, these same choices of equipment structure the architecture of the environment. This is why joint acoustic integration work with the architect is essential in order to obtain successful conference room acoustics. For this we have developed tools and methods for modeling the acoustics of rooms in 3D: Hall Acoustics®.

Acoustics of conference rooms and amphitheaters

Thanks to Hall Acoustics®, we model all the architectural details of the conference room and amphitheater and work together with the architect on the choice of shapes, materials and textures so that they contribute to the acoustic performance desired for the room. In order to guarantee the intelligibility of the amphitheatres, natural acoustics have been favored. To do this, the coverings for the walls of the room were designed jointly by the acoustician and the architect so that they respond as much to the desired material effects as to the optimal acoustic performance.

Sound insulation and dry dies

The IUT civil engineering and sustainable construction has wooden facades, frameworks and floors. Consequently, the sound insulation of the place represented an important issue, especially between the TD rooms and amphitheatres. Thanks to our virtual acoustic laboratory we were able to verify the acoustic performance of the wood materials used. The virtual acoustic laboratory has enabled us in particular to ensure:

• Controlling the acoustic performance of walls equipped with stiffeners;
• Taking into account, in the laboratory test reports, the site realities of the assembly details of these structures, determining their acoustic performance;
• The integration of mechanical effects under stress or related to the effects of expansion of wooden planks. Thus we were able to predict and solve the potential problems of airtightness (and therefore acoustic) of the walls.