Diffuse-field absorption and transmission loss of small samples.
Cabin cabin Cabine cabine Alpha alpha absorption transmission loss TL tl C423 c423 ASTMC423 astmc423 astmC423 ASTMc423 423 astmc423 Astmc423 AstmC423 SAEJ2883 SAEj2883 saej2883 Saej2883 SaeJ2883 J2883 j2883 2883 ISO15186 iso15186 Iso15186 15186 diffuse field diffuse-field NRC nrc SAA saa Aw aw Rw rw STC stc
Normal-incidence absorption and transmission loss of circular samples.
Impedance Impedence impedance tube impedence conventional circular microphones microphone kundt Kundt E1050 ASTME1050 astme1050 ASTMe1050 E1050 e1050 astmE1050 Astme1050 AstmE1050 1050 ASTME2611 astme2611 E2611 e2611 astmE2611 Astme2611 AstmE2611 2611 ISO10534-2 ISO10534 iso10534-2 iso10534 Iso 10534 Iso10534-2 10534 10534-2 absorption transmission loss TL tl normal-incidence normal incidence
Normal-incidence absorption and transmission loss of square samples and metamaterials.
Impedance Impedence impedance tube impedence square microphones microphone kundt Kundt E1050 ASTME1050 astme1050 ASTMe1050 E1050 e1050 astmE1050 Astme1050 AstmE1050 1050 ASTME2611 astme2611 E2611 e2611 2611 astmE2611 AstmE2611 Astme2611 ISO10534-2 ISO10534 iso10534-2 iso10534 Iso 10534 Iso10534-2 10534 10534-2 absorption transmission loss TL tl metamaterial meta material materials metamaterials normal-incidence normal incidence
Surface impedance and non-linear behavior of liners and perforated plates at high sound levels, up to 155 dB.
Impedance Impedence impedance tube impedence microphones microphone kundt Kundt E1050 ASTME1050 astme1050 ASTMe1050 E1050 e1050 astmE1050 Astme1050 AstmE1050 1050 ASTME2611 astme2611 E2611 e2611 astmE2611 Astme2611 AstmE2611 2611 ISO10534-2 ISO10534 iso10534-2 iso10534 Iso 10534 Iso10534-2 10534 10534-2 absorption transmission loss TL tl normal-incidence normal incidence liner liners aeronautical perforated plates plate high level highlevel
High-frequency sound absorption up to 10 kHz, for electric motor and eVTOL noise.
Impedance Impedence impedance tube impedence microphones microphone kundt Kundt E1050 ASTME1050 astme1050 ASTMe1050 E1050 e1050 astmE1050 Astme1050 AstmE1050 1050 ISO10534-2 ISO10534 iso10534-2 iso10534 10534 10534-2 Iso 10534 Iso10534-2 absorption normal-incidence normal incidence high frequency highfrequency electric motor automotive EV eVTOL evtol propulsion
In-situ sound absorption of road surfaces.
Impedance Impedence impedance tube impedence microphones microphone kundt Kundt ISO13472-2 ISO13472 iso13472-2 iso13472 13472 13472-2 Iso13472-2 Iso13472 absorption normal-incidence normal incidence asphalt road surface surfaces traffic pavement pavements pollution rolling noise
Static airflow resistivity of open-cell porous materials.
ASTMC522 astmc522 ASTMc522 astmC522 AstmC522 Astmc522 C522 c522 522 ISO9053-1 ISO9053 Iso9053-1 Iso9053 iso9053-2 iso9053 9053 9053-2 static airflow Airflow Resistance resistance Resistivity resistivity open-cell open cell porous flow permeability velocity absorption
Open porosity and true bulk density of open-cell porous materials.
Porosity porosity Density density pycnometer bulk open open-cell open cell porous absorbing Biot biot
Young’s modulus, Poisson’s ratio and loss factor of porous materials.
ISO18437-5 ISO18437 iso18437-5 iso18437 Iso18437-5 Iso18437 18437-5 18437 young young’s Young Young’s modulus Poisson Poisson’s poisson poisson’s ratio loss factor porous biot Biot biot mechanical damping absorbing absorption elastic
Tortuosity and characteristic lengths of porous materials, by ultrasound.
tortuosity Tortuosity characteristic length lenght lengths lenghts porous ultrasound gas ultrasonic noise control reflection transmission biot Biot high-frequency high frequency
Airflow resistance of highly resistive materials: liners, resistive films, perforated plates.
high High flow resistance resistivity resistive liners liner perforated plates plate films film aeronautical pressure drop permeability
Damping of viscoelastic materials versus temperature and frequency, from -40 to 130 °C.
damping Damping Oberst oberst beam visco viscoelastic temperature frequency climatic loss factor Young Young’s young young’s shear modulus vehicule automotive nomogram 3D graph ASTME756-05 astme756-05 AstmE756-05 Astme756-05 ASTME756 astme756 AstmE756 Astme756 ASTMe756-05 ASTMe756 astmE756-05 AstmE756-05 astmE756 AstmE756 E756 e756 756 E756-05 e756-05 756-05 ISO6721 iso6721 Iso6721 6721 SAEJ1637 saej1637 saeJ1637 SAEj1637 SaeJ1637 Saej1637 J1637 j1637 1637
Young’s modulus, shear modulus and damping of elastic and viscoelastic materials, from 0 to 60 °C.
damping Damping visco viscoelastic temperature frequency climatic loss factor Young Young’s young young’s shear modulus vehicule automotive nomogram 3D graph free-free free beam ISO16940 iso16940 Iso16940 16940 SAEJ3130 saej3130 SaeJ3130 SaeJ3130 SAEj3130 saeJ3130 J3130 j3130 3130 JISG0602 jisg0602 Jisg0602 JisG0602 JISg0602 jisG0602 G0602 g0602 0602
Damping of brake pad insulator shims versus frequency and temperature, from -10 to 120 °C.
Damping damping brake pad insulator insulators shim shims frequency temperature pad pads SAEJ3001 saej3001 Saej3001 SaeJ3001 SAEj3001 saeJ3001 J3001 j3001 3001
Measurement systems designed for your specific material or test configuration.
custom personnalized personalized personnalised personalised adapted modified tailored non-standard
Design and optimize multilayer acoustic treatments, from porous layers to metamaterials.
software nova NOVA Nova absorption TL tl transmission loss impact STC stc Stc Rw RW rw SAA Saa saa aw Aw IIC Iic iic Lnw lnw Ln,w ln,w multilayer multilayers porous layers metamaterial metamaterials solid elastic fibrous perforated plates plate laminated panels panel Helmholtz helmholtz resonator resonators simulation single parallel excitation tapping machine micro-macro micro macro JCAL jcal JCA jca Biot biot auralization auralisation NVH nvh foam fiber foams fibers insulation transfer matrix matrices
Convert impedance tube measurements into simulation-ready material parameters.
software FOAM-X foam-x FOAMX foamx Foam-x Foam-X foam-X foamX porous fibrous perforated fabric impedance tube impedence Impedance kundt Kundt tubes inverse characterization characterisation JCA JCAL jca jcal Jca Jcal Lafarge lafarge Biot biot extraction parameters parameter open porosity airflow resistivity tortuosity thermal viscous characteristic length lengths lenght lenghts permeability Young’s young’s Young young modulus Poisson’s poisson’s Poisson poisson ratio loss factor damping sensitivity
Store and share vibro-acoustic material parameters and files across your team.
software vibro-acoustic database client-server biot Biot JCA JCAL jca jcal Jca Jcal file files store storage data library multi-user multi-users acoustalink Acoustalink
Full-frequency vibro-acoustic simulation combining FE, BEM and SEA.
software vibro-acoustic simulation platform Finite Element finite element FE Boundary Element boundary BEM Statistical Energy Analysis statistical energy SEA hybrid NVH nvh radiation TL tl
Full JCAL and Biot parameter set of your porous materials, ready for simulation.
JCAL JCA jcal jca Jcal Jca Biot biot characterization characterisation caracterization caracterisation porous simulation open porosity airflow resistivity tortuosity thermal viscous characteristic length lengths lenght lenghts permeability Young’s young’s Young young modulus Poisson’s poisson’s Poisson poisson ratio loss factor ISO 9053-1 iso9053-1 ISO9053 iso9053 9053 9053-1 ASTMC522 astmc522 C522 c522 AstmC522 Astmc522 ISO18437-5 iso18437-5 ISO18437 iso18437 Iso18437-5 Iso18437 18437 18437-5 NVH hvh Nvh poroelastic testing testings
Young’s modulus, shear modulus, and loss factor of your damping materials versus frequency and temperature.
damping mechanical characterization characterisation caracterization caracterisation loss factor Young Young’s young young’s shear modulus viscoelastic frequency temperature NVH nvh Nvh finite element elements modeling FE ASTME756-05 astme756-05 AstmE756-05 Astme756-05 ASTME756 astme756 AstmE756 Astme756 ASTMe756-05 ASTMe756 astmE756-05 AstmE756-05 astmE756 AstmE756 E756 e756 756 E756-05 e756-05 756-05 ISO6721 iso6721 Iso6721 6721 SAEJ1637 saej1637 saeJ1637 SAEj1637 SaeJ1637 Saej1637 J1637 j1637 1637 ISO16940 iso16940 Iso16940 16940 SAEJ3130 saej3130 SaeJ3130 SaeJ3130 SAEj3130 saeJ3130 J3130 j3130 3130 JISG0602 jisg0602 Jisg0602 JisG0602 JISg0602 jisG0602 G0602 g0602 0602 SAEJ3001 saej3001 Saej3001 SaeJ3001 SAEj3001 saeJ3001 J3001 j3001 3001 testing testings
Diffuse-field absorption and transmission loss of your materials, to recognized standards.
diffuse-field diffuse field absorption transmission loss tl TL characterization characterisation caracterization caracterisation NRC nrc Nrc SAA saa Saa STC stc Stc ASTMC423 ASTMc423 astmc423 astmC423 Astmc423 AstmC423 C423 c423 423 SAEJ2883 SAEj2883 saej2883 Saej2883 SaeJ2883 J2883 j2883 2883 ISO15186 iso15186 Iso15186 15186 ASTME2249 ASTMe2249 AstmE2249 Astme2249 astme2249 astmE2249 E2249 e2249 2249 SAEJ1400 SAEj1400 SaeJ1400 Saej1400 saej1400 saeJ1400 J1400 j1400 1400 SAEJ2846 SAEj2846 SaeJ2846 Saej2846 saej2846 saeJ2846 J2846 j2846 2846 cabin cabine alpha Cabin cabin cabine Cabine Alpha testing testings
Normal-incidence absorption and transmission loss of your materials.
NSAC nsac Nsac NSTL nstl Nstl characterization characterisation caracterization caracterisation absorption transmission loss tl TL normal-incidence normal incidence impedance tube impedence Impedance Impedence kundt Kundt E1050 ASTME1050 astme1050 ASTMe1050 E1050 e1050 astmE1050 Astme1050 AstmE1050 1050 ASTME2611 astme2611 E2611 e2611 astmE2611 Astme2611 AstmE2611 2611 ISO10534-2 ISO10534 iso10534-2 iso10534 Iso 10534 Iso10534-2 10534 10534-2
Field surveys and noise modeling to meet environmental regulations.
environmental permit building survey authorization MELCCFP compliance new construction approval pre-permit study
Diagnosis and improvement of sound insulation, reverberation and speech intelligibility.
building insulation reverberation speech in-situ architectural new construction renovation partitions partition façades façade ceilings ceiling floors floor walls wall codes standards transmission control impact ASTC astc Astc ASTME336 astme336 AstmE336 ASTMe336 astmE336 E336 e336 336 ASTME413 ASTMe413 AstmE413 Astme413 astmE413 astme413 E413 e413 413 OITC oitc Oitc ASTME966 ASTMe966 AstmE966 Astmse966 astmE966 astme966 E966 e966 966 AIIC Aiic aiic ASTME1007 ASTMe1007 AstmE1007 Astme1007 astmE1007 astme1007 E1007 e1007 1007 ASTME336 ASTMe336 AstmE336 Astme336 astmE336 astme336 E336 e336 336 RT60 Rt60 rt60 ASTME22356 ASTMe2235 AstmE2235 Astme2235 astmE2235 astme2235 E2235 e2235 2235 ANSI/ASA S3.5 s3.5 S12.23 s12.2 NC nc Nc RC rc Rc RNC Rnc rnc
Collaborative engineering, advanced simulation, and lab testing for acoustic solutions.
Co-development custom simulation lab testing laboratory solutions solution models model validation independant software