BASTIAN offers several databases supplying the acoustical data of a number of building elements, as there are walls, floors, roofs, facades, additional layers (wall linings und floating floors), and windows, doors and glazings.

The optional extension BASTIAN auralization renders the calculation results for airborne sound transmission between rooms and from the outside audible for various interior and exterior sound sources and for different kinds of receiving rooms. BASTIAN auralization is a pure software solution, not requiring any additional hardware.