Binaural signal processing

The human binaural system has a number of astonishing capabilities that are essential for the formation of our aural worlds. To mimic these, signal-processing models of the binaural system have been built and are constantly improved. In the following, the current state of the art of these models will be reviewed and their potential with respect to practical application will be discussed. Further, trends for future developments in these models will be considered. In this context, reference will be given to activities of AABBA, an open international circle of researchers with a special interest in the application of binaural models. Generic application areas for binaural models are, among others, aural virtual environments, hearing aids, assessment of product-sound quality, room acoustics, speech technology, audio technology, acoustic surveillance, robotic ears and tools for research into auditory physiology and perception.