Leila Mezian Foundation

Tisseyre + Associés has 40 years of experience in architectural and environmental acoustics. 30 years ago, anticipating the shift to digital and 3D visualization, we developed tools and methods for 3D models for rooms and 4D for the environment. Instead of using the sound ray shooting technique which does not take into account the architectural details, nor the urban acoustic porosity, we use the finite element mesh technique. This technique makes it possible to study acoustic phenomena in real 3D (rather than extended 2D) by taking into account architectural details from the design phase. Based on the observation that the acoustics of a building or its environment is structuring for its architecture and town planning, we have developed a methodology for joint work with the architect and town planner.

Environmental acoustic mission

Thanks to BIMAE®, we modeled the soundscape in the future state of completion, taking into account the noise of transport and human activities. Our modeling is not based on measurements but on a database and a statistical approach (Urbanistic Noise Map®) allowing us not to depend on the intrinsic variability of soundscapes. Thus, from the design phase we can collaborate with the architect to offer him acoustic insulation solutions integrated into the architecture of the project.

Sound impacts of transport noise on the foundation

Complete acoustic mission of the museum

Thanks to our 3D model tool for spaces in operation, Intelligibility^®, we can collaborate from the design phase with the architect in order to integrate the acoustic solutions into the architecture of the rooms of the museum. For the Leïla Mezian Foundation, we have proposed tailor-made acoustic solutions to ensure that the guided tours remain intelligible for the visitors benefiting from them, while ensuring that they do not disturb the visit of other users.

Auditorium acoustics and sound system

Thanks to our 3D model tool for Hall Acoustics rooms^®, we can collaborate from the design phase with the architect in order to integrate the acoustic performance of the room into the architecture. Our work therefore does not focus on the dimensioning of a posteriori solutions of acoustic absorbers to attenuate the effects of reverberations. We work with the architect on the choice of shapes, sound system and materials used so that the sound is distributed evenly and that intelligibility is optimal throughout the auditorium.

Intelligibility of the auditorium by sound system

Auditorium intelligibility per speaker (natural voice)