News

Vreeland WHIS®barrier

We installed almost 300 meters WHIS®barrier for our client Provincie Utrecht. In this project we’ve combined our WHIS®top with a standard road safety barrier from Haitsma Beton  

SonoCat

Since january 2021 we are the supplier of a state of the art multifunctional spherical microphone. The SonoCat can measure various things like SPL, absorption, sound intensity level and Sound [...]

Noise diffraction reduces traffic noise

From Noise news international 26 March 2020  In the last edition of Noise News International, published by Institute of Noise Control Engineering – USA, Ysbrand Wijnant had the opportunity [...]