Apparatus and instruments for binaural recording, namely, digital artificial head measurement systems, artificial head microphones, binaural head microphones, binaural headsets, comprising acoustic conduits, acoustic couplers, microphones, loudspeakers; apparatus and instruments for data acquisition and recording, namely, modular multi-channel front ends with signal conditioning, stand-alone recording and playback systems, comprising computer peripheral devices, integrated circuits, measuring instruments, precision measuring apparatus, sound recording apparatus; software for data acquisition, evaluation and analysis, namely, software for binaural recording, software for multi-channel recording, software for psychoacoustic analysis, software for signal and system analysis in time, frequency and order domain, software for analysis of speech and audio quality, software for aurally accurate playback of sound events, software for conducting listening tests, software for binaural transfer paths synthesis, software for interactive playback and simulation of vehicle interior sounds; apparatus and instruments for aurally accurate sound reproduction, namely, loudspeaker arrangements for sound field reproduction, 2-channel output modules, binaural headphone equalizers for aurally accurate playback, electrodynamic headphones, headphone amplifiers, subwoofers, comprising, amplifiers, loudspeakers, portable media players, sound reproduction apparatus; instruments and software for on-line localization of sound sources in real time, namely, beam forming microphone array with camera module, microphone arrays for sound field recording, software for localization, visualization, quantification and auralization of sound sources, comprising, computer programs and sound locating instruments; binaural analyzers; direction sound mixers; apparatus for the spatial mapping of complex sound fields using binaural recording