Coenbrug
Sound dampening materials are going to be applied.
Sound dampening materials are going to be applied.
Our founders Ysbrand Wijnant and Eric de Vries have won the Van den Kroonenberg Prize.
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.
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 [...]
The EU-funded WHISSPER project will promote new technology developed by 4Silence, a company based in the Netherlands. Its revolutionary, yet simple and sustainable solution is based on the [...]
Project: WHIS®top A73 Zuiderbrug Venlo Client: Gemeente Venlo Contractor: 4Silence
Project: Low frequency diffractoren The Lier Client: Provincie Zuid Holland Contractor: 4Silence
Project: WHIS®wall Amersfoort N221 Client: gemeente Amersfoort Contractor: 4Silence
Project: WHIS®wall Hagevoortdreef Almere Client: Gemeente Almere Contractor: 4Silence
Project: West wil groene buffer Opdrachtgever: Gemeente Nijmegen Aannemer: Roelofs