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Acoustic Bulletin

Room acoustics blog

sound absorption

Combination of Absorbers and Diffusers – An Experimental Study in a Classroom

2020-09-22 by Colin Campbell

This study provides information on how different acoustic treatments can be used to obtain different room acoustic qualities, and can be used to improve and fine-tune the room acoustic parameters for better speech and listening conditions in classrooms. The background overview The most common acoustical treatment in ordinary classrooms is a suspended sound absorbing ceiling. […]

Huge media attention in Sweden for report on sound environment

2010-01-22 by Marc Janssen

Every other in Sweden is disturbed by Noise! According to a recent report, noise is a major problem at work. Almost every employee is affected, says the president of Hörselskadades (Hearing impaired) Association (HRF), who commissioned the report. “The problem with the sound environment is everywhere – even in school and at cafes for example. […]

Test codes for sound absorption measurements

2009-10-28 by Marc Janssen

Nils-Åke Andersson CEN/TC 126, Building acoustics, has created a working group, WG 11, to develop Test Codes for suspended, acoustic ceilings. WG 11 started its work about a year ago with Nils-Åke Andersson from Saint-Gobain Ecophon as convener and has now about 15 participants from around Europe. The reason doing this work is the problems […]

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