Stereo hearing

Two ears can discern the direction from which a sound originates, in a process called binaural localisation. This uses cues received by the ears: Interaural intensity differences Interaural arrival-time differences The effects of the pinna (outer ears) Diagrams from Chapter 6: Stereo Miking Techniques, Huber & Williams, Professional Microphone Techniques, Mix Books, 1998.