Roomacoustical measurements  
Roomacoustical measurements as a prerequisite for planned construction work in the Schlüterhof of the German Historical Museum Berlin  
   
Roomacoustical measures in the Schlüterhof of the German Historical Museum in Berlin (absorber foil, two layers)  
   
  Reflections at the glass roof and reverberation below the same in the Schlüterhof (without absorber foil)  
   
  Reflectogram before foil installation  
   
  Absorber foil below the glass roof (different views)  
   
  Reverberation time and echoes before and after foil installation  
   
  Reflectograms before and after foil installation