A new analysis system of the lateral transmissions has been implemented so now the joints between two elements in an “L” or “I” connection are taken into account. Furthermore, the results contain a greater amount of information on the elements that intervene in the connection, the geometric analysis and formulas used for the analysis of the paths sound must travel along as well as for the differences in the level of velocity in the connection (Dv,ij) that are reached. These latter values are obtained based on the method provided in “Annex E” of the “EN 12354-1:2016” code (Building acoustics. Estimation of the acoustic performance of buildings from the performance of elements. Part 1: Airborne sound insulation between rooms).
