For a detailed analysis CARA calculates the total sound field data at 1,000-3,000 equally distributed grid points in the room. The evaluation of the sound field data concerns the modal structure (steady state sound pressure distribution), the room response of a Dirac-Pulse excitation in the time domain, the distribution of sound coloration, the sound imaging (stereophonic sound localization), and the speech intelligibility. CARA provides the expert with a great number of room acoustic reference numbers (frequency dependent reverberation times, sound coloration, speech intelligibility, lateral sound level, or stereophonic sound localization) derived from sound pressure frequency responses or transient room responses/reverberation diagrams. The special function Auralization renders a listening test in the (virtual) room to evaluate for example sound differences due to different loudspeaker positionings. Any piece of music (two channels Stereo) may be used for this.