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Human–computer interfaces enable the exchange of information between human users and various types of machines, computers and other electronic devices. The interaction with modern devices is most commonly performed through visual, auditory or tactile user interfaces. In the case of an auditory interface, the information is presented with different types of sounds. Auditory interfaces can complement visual interfaces or in some cases represent an independent input or output interface to a selected device.

This survey focuses on a special group of auditory interfaces using spatial sound for the representation of information. The addition of information on the location of a selected sound source or a group of sources shows many advantages over a mere single-channel audio. This survey explains the most important limitations of the human hearing system and the perception of spatial sound. It also includes some …