4Silence stands for reducing noise pollution by traffic. Sustainable noise reduction, innovative solutions, scientifically founded, proven results. The Whisstone is the first, but certainly not the last innovation that we have developed.
By reducing traffic noise, 4Silence has developed a diffracting element: The Whisstone. The diffractor is a concrete element with cavities that can be installed next to the road surface.
The newest product of 4Silence is an application of the existing Whisstone. By adding the diffractor to a sound barrier, the applicability of the Whisstone directly becomes more useful.
an innovative add-on for existing noise barriers