Developing an innovative methodology for laboratory characterization of absorbent treatments and analyzing its applicability in the field Abstract In Québec, occupational deafness is often the second most common disease compensated by the CSST, and injuries from noise exposure were highest in terms of average cost per injury over the period 2005-2007. Moreover, noise increases the risk of accident by blocking out alarms, makes conversation less intelligible and increases fatigue. A specific method for reducing noise on propagation is noise absorption treatment. Characterization of the absorbency of such treatments is done only in laboratories, and is imprecise in many respects. In addition, there is currently no reliable technique for measuring the in situ acoustic absorption of treatments in actual conditions of use. This study aims to propose a robust and reliable method for characterizing absorbant treatments in the laboratory, but also in the field, in order to assess actual performance after installation. This will provide optimal treatments for controlling and preventing workplace noise, in terms of cost and effectiveness. Produced Under this Project Scientific Reports Innovative Method for Characterizing Acoustic Materials in the Laboratory and Study of Its Applicability in the Field Research Report: R-1022 Video Reports and Conferences Innovative Method for Characterizing Acoustic Materials in the Laboratory and Study of Its Applicability in the Field Conference: CF-280 Simplified Articles BruitInnovation dans la caractérisation des matériaux acoustiques Volume 32, n0 1 Scientific Publications Méthodologie innovante pour la caractérisation des matériaux acoustiques en laboratoire et étude de son applicabilité sur le terrainRobin O.Source : (2018). Communication présentée à Rendez-vous de la science de l'IRSST, Montréal, QC. Tiré de https://www.irsst.qc.ca/publications-et-outils/video/i/100418/n/materiaux-acoustiquesLaboratory and in situ sound absorption measurement under a synthetized diffuse acoustic fieldRobin O., Berry A., Amédin C.-K., Atalla N., Doutres O., Franck SgardSource : (2019). Building Acoustics, 26(4), 223-242. doi: 10.1177/1351010X19870307Laboratory and in situ sound absorption measurement under a synthetized diffuse acoustic field: A case study on five materialsRobin O., Amédin C.-K., Berry A., Atalla N., Doutres O., Franck SgardSource : Communication présentée auSymposium on the Acoustics of Poro-Elastic Materials, Le Mans, France, 2017 (p. 1-2).A numerical study of a method for estimating sound absorption coefficient under a synthesized diffuse acoustic fieldRobin O., Amédin C.-K., Berry A., Atalla N., Doutres O., Franck SgardSource : (2016). SAE International Journal of Passenger Cars- Mechanical Systems, 9, 1111-1116. doi: 10.4271/2016-01-1847 Assessing sound absorption coefficient under a synthesized diffuse acoustic field: effect of the sample size and natureRobin O., Amédin C.-K., Berry A., Atalla N., Doutres O., Franck SgardSource : C. Burroughs (dir), Communication présentée à 44th Interational Congress and Exposition on Noise Control Engineering (Internoise 2015): Implementing Noise Control Technology, San Francisco, CA, 2015 (p. 1695-1706).Is my material an efficient acoustical material?Doutres O., Franck Sgard, Laville F., Voix J., Bouthot O., Hugues Nélisse, Pierre Marcotte, Boutin J. Source : (2015). Acoustique canadienne/Canadian Acoustics, 43(2), 24-25.Sound absorption measurements: Comparison of standard tests in reverberant room with measurements using a synthetized diffuse acoustic fieldRobin O., Amédin C.-K., Berry A., Atalla N., Doutres O., Franck SgardSource : Communication présentée à Inter-Noise 2016 45th International Congress and Exposition on Noise Control Engineering- Towards a Quieter Future, Hamburg, Allemagne, 2016 (p. 4139-4148). Other Project(s) You May be Interested in Development of a Measurement System to Characterize Sound Absorbing Treatments in the Laboratory by Optimizing an Innovative Method and Creating a Database for Absorption Coefficients Additional Information Type: Project Number: 2014-0006 Status: Completed Year of completion: 2018 Research Field: Mechanical and Physical Risk Prevention Team: Alain Berry (Université de Sherbrooke)Noureddine Atalla (Université de Sherbrooke)Olivier Robin (Université de Sherbrooke)Olivier Doutres (Université de Sherbrooke)Franck Sgard (IRSST)