MSC.Actran is the most complete acoustics and vibro-acoustics software currently on the market. Under a common technological umbrella provided by the finite and infinite element method, MSC.Actran provides a rich library of elements, materials, boundary conditions, solution schemes and solvers. MSC.Actran is used by the most demanding engineers, researchers and teachers to solve challenging acoustics, vibro-acoustics and aero-acoustics problems.