We want to present you two new calculations modules.
The first module allows you to calculate the sound attenuation of noise barriers in the range of 50 - 5000 Hz. The calculation procedure is based on ISO 9613, which considers also lateral diffraction effects and the sound transmission through the barrier.

The next module offers you the capability to calculate the spectral attenuation. You define an excitation spectrum (from a measurement for example) and then apply the sound reduction index of a previously saved insulation project. The input spectrum can be given in Linear, A or C weighting. The result can also be presented in any of these weightings.

Log in and check our new modules: Noise barriers and Spectral attenuation.