Reducing background noise in classrooms can reduce teacher stress
Reducing background noise in classrooms can tangible benefits for both teachers and pupils. Minimising reflected sound or reverberation can direct result in improved speech clarity and better understanding by pupils, while teachers have less need to shout or strain to be heard. Hard surfaces like glass or masonry are usually the culprits, and need to be covered with a sound absorbing lining to minimise reflections and echo.
A recent noisy classroom project at Marian College, Sunshine West, in Victoria involved acoustic consultant Mr David Dolly, from Acoustic Consulting Australia. He calculated the reverberation time and found it was outside the international guidelines for classrooms ( Education Regulations 1999, SI 1999 No. 2 and Requirement E4/Part E/Schedule 1, 1 of the Building Regulations 2000) so a significant amount of sound absorbing materials needed to be introduced into the classroom to make it usable. However, due to windows, services, doors, etc., the only area available for acoustic treatment was on the ceiling.
SerenityLite Acoustic Panels
The desired outcome was achieved using SerenityLite Acoustic Panels on the ceilings and in some small wall areas. The SerenityLite Acoustic Ceiling Panels selected were 25mm thick as they performed best at frequencies of 750Khz and above. Covered in porous, decorative fabric in multiple colours a vibrant, exciting ceiling was created. Acoustically, the result was a very usable classroom with improved teaching conditions due to the significant reduction in the reverberation time.
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