The difference of the normalised level for the acoustic transmission of indirect airborne noise via halls or corridors, Dn,s, has been implemented in the analysis. To do so, the method described in “section 2.1” of “Annex F” of the EN 12354-1 code has been used.
To activate this analysis, users must select, in the general parameters of the project, the option “Calculate the indirect airborne noise transmission across this space” for each type of corridor or hall.
When a project is linked to a BIM model containing geometric information, the project automatically detects the orientation and relative distance between doors with the aim to determine the value of the parameter Cdoorposition, which is required when using the formula of the code.
In the results table of the “Analysis” tab, this new analysis will appear in the receptor space with a different icon and the reference of the intermediate space. When opened, the analysis of the insulation between the emitter and intermediate spaces is displayed as well as that of the intermediate and receptor spaces.
