The CETRAM (Centre Européen de Technologies et de Recherches en Acoustique et Matériaux - European Centre for Acoustics and Materials Research), established in 2001 on the old military site of the DCN in Ruelle/Touvre in Charente, is a technology exchange structure specialised in acoustics (transport in particular). It has high-performance means and technical assistance at the disposal of businesses:

An acoustics laboratory consisting of a semi-anechoic room with the particularity of having a bench with 4 independent rollers and hydrostatic bearings, coupled reverberation rooms and a multi-station (10) listening studio dedicated to psychoacoustics and sound quality.
A mechanics and climate laboratory allowing tests of reaction to vibration and/or to acceleration, behaviour in exaggerated climatic environments (temperature and humidity aging), as well as a modal analysis station.
A materials laboratory enabling tests of reaction to fire, physical-chemical and acoustic behaviour of materials.
Preparation boxes of between 72m² and 168m² equipped with bridges and ready to hire out.
A team consisting of the manager of the centre, a Doctor in mechanics and three test technicians.
Collaboration with the Universities of Poitiers, la Rochelle and Haute Alsace as well as the regional CRITTs.

Because of its installation on an old military site, it offers complete confidentiality. In particular, it also offers complete services (acoustic and endurance) along with engineering services. Beyond its function as a testing centre, its objective is also to participate in companies' research programmes.