Konserthuset Stockholm

Projectgegevens

Inregeling/Interventie Konserthuset Stockholm   www.konserthuset.se

Locatie Stockholm, Sweden.

Periode 2013-2016.

Klant Stockholm Concert Hall Foundation/RSPO.

Plaats van interventie The 1 800-seat Stockholm Concert Hall, which hosts the Royal Stockholm Philharmonic, one of the world-class orchestras.

Geleverde diensten The acoustic separation between the narrow front of the stage and the significantly wider back of the stage has been treated by adding a moderate amount of acoustic absorption in the rear part of the stage and resetting the over-stage acoustic reflectors. In parallel, on-stage communication and cohesion of the orchestral sections was improved by adding vertically tilted Plexiglas panels on the choir balcony railings surrounding the orchestra.

The semi-transparent technical grid under the ceiling — separating the main acoustic volume from the upper part of the hall — was identified as being responsible for the lack of reverberation. Rather than embarking on a time-consuming renovation scheme, after a series of tests with a temporary electro-acoustic system, a dedicated system was finally installed. The acoustic result is a perceptual increase of ceiling height by 2 m — now corresponding to the architectural volume — while reverberation was augmented by 0.3 s.

Adviseur(s) Eckhard Kahle, Cees Mulder, Thomas Wulfrank, Kahle Acoustics.