The use of spatialized (“3-D”) audio techniques for head-up auditory displays for commercial aircraft has been investigated at NASA Ames Research Center since 1989. Results from two completed studies are presented, where a 3-D audio Traffic alert and Collision Avoidance System (TCAS) was designed and evaluated in a full mission simulation context. An experiment-in-progress evaluates the application of 3-D audio for gate identification and collision avoidance with other aircraft, as part of NASA's Terminal Area Productivity-Low Visibility Landing and Surface Operations (Lo Vlaso) program.
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