Active Noise Canceling

 

«  |  »

Year: 2005
Costumer:  Make it Big
Services: Consulting, planning, installation and measurements

The above shown installation was planned and measured by Rahe-Kraft for a special event in the Berliner Kongresshalle ("Schwangere Auster").
The building is located directly at the Spree river in Berlin. The event was to close with large fireworks, accompanied by music played from across the river. The German TA Laerm which protects close-by tenants from excessive noise requested low immissions from the loudspeakers.
With the help of backwards firing speakers (in this case V-DOSC 15"), a backwards reduction of >15dB at low frequencies could be achieved.


A little game on this topic…  Anti Noise Game