ACOUDESIGN

ACOUDESIGN develops high-performance embedded acoustic solutions for land mobility and industrial environments (rail, automotive, machinery/cabins). Our core business covers transduction, vibration mechanics, embedded electronics, and systems engineering, with strong capabilities in prototyping, integration, and validation in real-world conditions. We have proven experience in passenger audio (sound diffusion, intelligibility, onboard integration) for trains and automobiles, and have also carried out integrations in river/maritime environments. We are also involved in acoustic retrofitting operations in tertiary environments (including hotels), particularly with regard to noise issues in air handling/air conditioning systems. Our current trajectory aims to strengthen the transition from prototype to pre-production, gradually structuring the robustness, industrialization, and supply aspects in collaboration with our partners and future end users.

Our R&D activities focus on designing embedded acoustic solutions combining transducers, electronics, and signal processing software, with an emphasis on integration in constrained environments, industrial robustness, and low-frequency performance. Our main areas of focus are: Passenger audio: optimization of sound diffusion, intelligibility, and system integration (trains, automobiles, river/maritime). Vibro-acoustic control/noise reduction: development of active control functions at low frequencies. The feasibility of active noise control in the cabin has been validated with CETIM, with attenuation of around -10 to -15 dB (SPL) measured between 40 and 200 Hz in an instrumented cabin (final report CETIM CL/RT/2023-08 – May 26, 2023). Maturity: consolidation of the system architecture, field validation, preparation for pre-production (robustness, production requirements, cost/consumption optimization). Tertiary retrofit supplement: targeted acoustic treatments (including HVAC heating–ventilation–air conditioning) on existing installations. Note: gain expressed in SPL levels per band (1/3 octave), not in overall weighted dB(A) level.