Leo Lagrange sports complex

Tisseyre + Associés has 30 years of experience in 3D modeling of acoustic phenomena in rooms in operation and the acoustic performance of materials. Instead of using the sound ray shooting technique which does not take into account the architectural details, we use the finite element mesh technique which allows these details to be modeled with finesse in order to fully integrate them into the acoustic performance. of the room from its conception. Based on the observation that the acoustics of a room are structuring for its architecture, we have developed a joint working methodology with the architect.

Complete acoustic mission

We start from the observation that the uses are considerably influenced by the acoustics of a place, therefore it is essential to start from the uses planned during the acoustic design. Our tool for digital models of spaces in operation, Intelligibility^®, constitutes a work support allowing to propose tailor-made solutions according to the needs from the design stage. These 3D models fill in the gaps of sound measurements which are only acoustic photographs. They thus make it possible to anticipate acoustic solutions according to the multiplicity of uses in order to integrate them into the architecture in an optimized manner.

Sound insulation and dry dies

The Léo Lagrange sports complex rests on a wooden frame. Consequently, the soundproofing of the place represented an important issue, especially in the medium to long term. 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.