Acoustic analysis
CEVAA engineers provides acoustic analysis, testing, measurements and simulation in order to characterize and optimize your product.
Acoustic analysis by expert engineers
CEVAA supports manufacturers in acoustic diagnosis and the implementation of solutions to improve performance and reduce the noise level of systems. Our design office carries out tests to quantify the sound level, insulation or sound absorption of a product. We also carry out acoustic attenuation measures.
Thus, our team of specialized engineers and technicians guarantee reliable and precise analysis of sound levels with cutting-edge technologies and efficient software.
Acoustic measurement
Data acquisition in a testing laboratory or on site using microphones, sound level meters and other measuring instruments, assessment of sound level and noise characterization
- Radiated acoustic power measurement
- Sound pressure level measurement
- Vibration noise measurement
- Sound absorption measurement
- Acoustic insulation characterization
- Acoustic porosity measurement
- Squeak and Rattle parasitic noise analysis
- Diagnosis and solutions: determination of noise sources and proposal of improvement solutions
Acoustic simulation
Modeling the sound environment and system noise (airborne or solid noise) to improve sound quality through optimized acoustic design
Creation of acoustic boxes
Custom-made insulation and sound absorption box for industrial production machines or end-of-line benches.
- Measure performance
- Reduce the noise of a system
- Determine the sound level in a restricted environment
Acoustic measurements and testing
In order to respond broadly to the needs of our customers and satisfy their expectations, CEVAA has a large equipment fleet.
- Semi-anechoic chamber to place the product in open field conditions
- Insulation cabin or small cabin to characterize the insulation of materials or crossings
- Alpha cabin to measure the sound absorption coefficient in diffuse fields
- Impedance tube to measure absorption and TL (Transmission Loss / attenuation index
- Aero-acoustic flow bench to measure noise due to air flow
- Chassis dynamometer for 2-wheel and 4-wheel vehicles to reproduce test conditions in a silent environment (CSQ and/or quiet room)
- Microphone sensors, sound level meter and binaural headphones to record and measure sound pressure levels
- Acoustic heads to absorb noise
- Low, medium and high frequency sources to determine acoustic transfer functions
Contact us for an acoustic analysis of your project and obtain tailor-made solutions.
Applications
- Automotive / transport: noise measurement inside the passenger compartment and outside (sound level) according to standards, measurement of insertion loss, quantification of the insulation or absorption of an automobile part in the system, acoustic characterization of the sound-absorbing complexes of the vehicle floor/apron, comparison of acoustic measurements on refrigeration units
- Defense and security: acoustic discretion, identification and prioritization of noise sources, simulation of noise inside a vehicle
- Medical devices: acoustic measurements of devices, acoustic tests for checking the conformity of the results of an audiometry system
- Household appliances: measuring the sound power level of a vacuum cleaner
- Sport and leisure: optimization study and testing of foam for noise-canceling helmets, noise reduction in the cycle sector (freewheeling, automatic pedal, etc.)
- Industrial production: reduction of noise from machines and installations, sound insulation of workshops, control of production processes
- Environment: noise mapping, sound impact studies, implementation of anti-noise solutions, etc.
- Materials: characterization in level and frequency of a product, proposal of solutions, etc.
CEVAA expertise
- Provision of a specialist acoustics testing center
- Significant experience in acoustic phenomena (industrial, automotive, aeronautics, aerospace, etc.)
- Creation of a complete validation plan (management of all tests of a standard)
- Experimental research and acoustic simulation
- Acoustic comfort
OUR TECHNICAL MEANS
Instrumentation and acquisition means
Aeroacoustic flow bench
Semi-anechoic chamber
Chassis dynamometers
Small cabin
Alpha Cabine
Impedance tubes
Calculation software
For more information, contact us to discuss technically on your needs!