Noise reduction and increase of speech intelligibility by use of wall absorbers
People with impaired hearing have difficulties to communicate in environments with long reverberation times. Therefore, we were asked by the ENT Center in Neuss to optimize the foyer which is used as a waiting and reception area in the interest of patients and employees.
We have decided to install a large size custom printed acoustic module type A700 of approximately 3 x 4,8 m above the waiting area. On the side of the reception, we installed multiple broadband absorbers of the type A 115. In the open staircase to the first floor we have installed three absorbers type A700 forming a three-part image of nine meters length.
Reverberation time is a measure for spaciousness of a room and is a central factor with acoustic room design. The longer the reverberation time, the higher the ground noise level and the lower the speech intelligibility.
With our measures taken, reverberation time has been more than halved and thus the stress of the reception staff has been significantly reduced. Patients with hearing impairments also have a huge benefit by these measures.
The evangelic church of Dortmund Brackel was acoustically improved by A500 absorbers at the cantilevered wooden ceiling. It can now be [...]
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