Device for generating signals for wind noise

Device for generating signals for wind noise within a motor vehicle passenger compartment comprising: a computer unit, which is capable of: - preparing a CAD model (100) of a particular vehicle part by modifying an output CAD model; - Create a calculation of the network specific part of this CAD model; - calculating a transient flow across the particular part by CFD calculation using the network by outlining polygonal areas and the average value of the pressure and of the sections of the polygonal areas is calculated. - extracting a set of aerodynamic data of at least a predetermined portion of the CAD model of the calculated transient flow, wherein the set of aerodynamic data comprises at least: - a record for places of occurrence of vortices and the vortex strength, - a record for tracking details of obstacles on the outer surface, and - a record of the pressure coefficient distribution; and - generating a virtual representation of the wind noise at a predetermined location of the CAD model from the set of aerodynamic ...