Three-dimensional audio versus head-down traffic alert and collision avoidance system displays.

The advantage of a head-up auditory display for situational awareness was evaluated in an experiment designed to measure and compare the acquisition time for capturing visual targets under two conditions: standard head-down Traffic Alert and Collision Avoidance System display and three-dimensional (3-D) audio Traffic Alert and Collision Avoidance System presentation. (The technology used for 3-D audio presentation allows a stereo headphone user to potentially localize a sound at any externalized position in 3-D auditory space). Ten commercial airline crews were tested under full-mission simulation conditions at the NASA-Ames Crew-Vehicle Systems Research Facility Advanced Concepts Flight Simulator. Scenario software generated targets corresponding to aircraft that activated a 3-D aural advisory (the head-up auditory condition) or a standard, visual-audio TCAS advisory (map display with monaural audio alert). Results showed a significant difference in target acquisition time between the two conditions, favoring the 3-D audio Traffic Alert and Collision Avoidance System condition by 500 ms.

[1]  T Z Strybel,et al.  Aurally Aided Visual Search in the Central Visual Field: Effects of Visual Load and Visual Enhancement of the Target , 1991, Human factors.

[2]  Durand R. Begault,et al.  Techniques and applications for binaural sound manipulation in human-machine interfaces , 1992 .

[3]  Frederic L. Wightman,et al.  An Exploratory Study of the Use of Movement-Correlated Cues in an Auditory Head-Up Display , 1989 .

[4]  C. Wickens.  Engineering psychology and human performance, 2nd ed. , 1992 .

[5]  Elizabeth M. Wenzel,et al.  Localization in Virtual Acoustic Displays , 1992, Presence: Teleoperators & Virtual Environments.

[6]  Charles E. Billings,et al.  Pilots' use of a traffic alert and collision-avoidance system (TCAS 2) in simulated air carrier operations. Volume 1: Methodology, summary and conclusions , 1989 .

[7]  K. Saberi,et al.  Auditory psychomotor coordination and visual search performance , 1990, Perception & psychophysics.

[8]  F L Wightman,et al.  Localization using nonindividualized head-related transfer functions. , 1993, The Journal of the Acoustical Society of America.

[9]  D R Begault,et al.  Head-Up Auditory Displays for Traffic Collision Avoidance System Advisories: A Preliminary Investigation , 1993, Human factors.

[10]  Theodore J. Doll,et al.  Development of Simulated Directional Audio for Cockpit Applications , 1986 .

[11]  F L Wightman,et al.  Headphone simulation of free-field listening. II: Psychophysical validation. , 1989, The Journal of the Acoustical Society of America.

[12]  D. Perrott,et al.  Minimum Audible Movement Angle as a Function of the Azimuth and Elevation of the Source , 1992, Human factors.

[13]  Durand R. Begault,et al.  Techniques and Applications for Binaural Sound Manipulation , 1992 .

[14]  Durand R. Begault,et al.  3-D Sound for Virtual Reality and Multimedia Cambridge , 1994 .