Actran Acoustics is the foundation module of the Actran family and is both a standalone tool and a pre-requisite for advanced modules like Actran VibroAcoustics, Actran AeroAcoustics or Actran TM.

Actran Acoustics contains a wide set of acoustic modeling features making it the CAE tool of choice for simulating a large variety of problems, from the simplest component to the most elaborate system. The Actran Acoustics product relies on exclusive powerful, robust, fast and reliable acoustic finite and infinite element library.

Please find more information here:
http://www.mscsoftware.com/nordic/Products/CAE-Tools/Actran-Acoustics.aspx