Projects
Examples of our acoustic product development projects
Washable acoustic canopy
This project involved developing and industrializing a new, fully washable acoustic window air inlet canopy.
The product is made up of two Helmholtz resonators, enabling the product to meet the following specifications: high acoustic insulation and ease of cleaning.
Open silencer demonstrator
Video demonstration of the design and construction of an open silencer.
3D printed noise-cancelling headphones
This project consisted in developing noise-cancelling headphones that were designed to be manufactured entirely by 3D printing, a method of depositing molten wire, on an entry-level printer.
The headphones shell consists of a double wall separated by a porous 3D viscoelastic material and a non-porous gasket whose acoustic insulation function is supported by a Helmholtz resonator in the wall. The shell is connected to the helmet's headband by a ball-and-socket joint.
Porous material in 3D printing
This project involved inventing and producing rigid disks made from porous materials using 3D printing.
These porous material discs are assembled on an aero-acoustic test bench in a research laboratory. The assembly required a rigid acoustic solution with precise dimensions.
The porous material has been optimized to ensure that its resistivity complies with the specifications.
Innovative hearing protection
"Thanks to Jean for his professionalism and speed. We will work with him again with our eyes closed."
- Ora Earplugs via Malt
This project involved developing innovative hearing protection.
The product is based on existing and customized components.
The brief was to select and evaluate the components available for purchase from an acoustic and practical point of view, and then to design bespoke components that would bring innovation to the field of hearing protection.
Use of an innovative manufacturing process
A Nantes-based start-up has developed an innovative technology for manufacturing mechanical components.
The assignment involved co-developing an acoustic application with this start-up, using its manufacturing technology.
