Too much echo
In the office garden, council chamber and meeting room of the Town hall of the Municipality of Deventer, people were disturbed by too much reverberation.
In collaboration with Helios Pro Audio and Peutz, we installed acoustic solutions to eliminate these annoying sound reflections.
The new city hall of Deventer
Deventer's new town hall is located next to the old town hall and was built in January 2016. An imposing building of no less than 24,000 m2, whose modern architecture blends seamlessly with the historic aspects of the adjacent buildings.
This did not go unnoticed. A year later, the design of the building - designed by Neutelings Riedijk Architects - won the public award for "Best Building of the Year".
Reverberation time too long
The new city hall of the municipality of Deventer has been realized according to the principles of flexibility, sustainability, cooperation and interaction.
That is why, among other things, an office garden was chosen that promotes cooperation between employees. But to be able to work comfortably there, the reverberation time must be limited. Unfortunately this took way too long.
The simplicity of communication in open-plan offices is regularly accompanied by noise pollution. Especially if the reverberation time is too long. Think, for example, of ringing telephones and the constant buzzing of employees.
That is why good acoustics in open-plan offices are of great importance for productivity and satisfaction.
Add enough absorption
Not only was the reverberation time shortened, but the aesthetics of the room were also preserved. Between the windows we placed acoustic panels in the same color as the concrete walls.
Meeting room "De Ijsselzaal"
In meeting room De IJsselzaal, the acoustic panels are attached to the walls. Also in the same color so that they do not stand out.
This makes the IJsselzaal seem like a quiet place where people meet without reverberation and visible distractions.
The old council chamber
The "Oude Raadzaal" is a monumental room with classical ceiling ornaments and an impressive fireplace. The hall is no less than five meters high, so the sound was simply reflected.
The acoustic measurement showed that the reverberation time of this room was too long, making it difficult to communicate in meetings.
We could not install any absorption on the ceiling because of the ceiling ornaments. That is why we opted for acoustic wall panels. The acoustic panels are fitted with picture rails so that works of art can be hung without damaging the panels.
Would you like to know which acoustic solution is the best in your situation? Then we would be happy to provide you with a tailor-made advice.