From 11 to 3 s - extreme reverberation control
In 1999, acoustics expertise (incl. Delta and Carl Bro) was contacted to evaluate, measure and simulate the acoustics of the glass-roofed Sculpture Street at the New Statens Museum for Kunst, Copenhagen, Denmark.
The "street" is actually courtyard in between the older part of the museum and an extension completed 1998. The extensive use of hard materials in the room (glass, marble, plaster and steel) made the room simply unappropriate to most activities.
The challenge was to bring down the very high reverberation time (more than 10 s!) down to reasonable levels. The solutions should be implemented as discreetly as possible.
An extensive refurbishment and acoustical upgrade of the premises was conducted in 2003, ending up in a reverberation time of less than 3 s. The courtyard can now be used for lectures and music performance.
Listen and judge!
Before refurbishment (more than 10 s)
After refurbishment (less than 3 s)
