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ReferencesNavigation arrowAuthorsNavigation arrowGerman Valencia
May 23

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German Valencia

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Publications by German Valencia (bibliography)

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1990
 
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Valencia, German and Agnew, Jeffrey R. (1990): Evaluation of a Directional Audio Display Synthesizer. In: D., Woods, and E., Roth, (eds.) Proceedings of the Human Factors Society 34th Annual Meeting 1990, Santa Monica, USA. pp. 6-10.

“A three-dimensional (3-D) auditory display imposes directionality to audio signals, over headphones, so that they are perceived as originating from unique spatial locations outside the listener's head. This study evaluated subjects' localization performance with a Directional Auditory Display (DIRAD) synthesizer. Subjects' ability to perceive the direction of target sounds in the azimuth plane was measured as a function of head movement with four types of audio stimuli. Results showed significant localization performance differences as a function of sound location, head movement condition and stimulus type. These results help to define the functional requirements of a 3-D auditory display prior to the integration of synthesized directional audio into flight simulators and advanced aircrew systems.”

© All rights reserved Valencia and Agnew and/or Human Factors Society

1988
 
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Calhoun, Gloria L., Janson, William P. and Valencia, German (1988): Effectiveness of Three-Dimensional Auditory Directional Cues. In: Proceedings of the Human Factors Society 32nd Annual Meeting 1988. pp. 68-72.

“Natural aural directional cueing in the cockpit should relieve the demands placed on the visual modality, reduce display clutter and alleviate cognitive attention needed to process and extract meaning from coded formats. This experiment compared the effectiveness of three-dimensional (3-D) auditory cues to conventional visual and auditory methods of directing visual attention to peripheral targets. Five directional cues were evaluated: visual symbols, coded aural tone, speech cue, 3-D tone (white noise appearing to emanate from peripheral locations) and 3-D speech (speech cue appearing to emanate from peripheral locations). The results showed significant performance differences as a function of directional cue type in peripheral target task completion time, as well as eye and head reaction time. Results, such as these, will help improve the application of directional sound in operational cockpits.”

© All rights reserved Calhoun et al. and/or Human Factors Society

1987
 
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Calhoun, Gloria L., Valencia, German and Furness, Thomas A. (1987): Three-Dimensional Auditory Cue Simulation for Crew Station Design/Evaluation. In: Proceedings of the Human Factors Society 31st Annual Meeting 1987. pp. 1398-1402.

“A three-dimensional (3-D) auditory display can increase the pilot's situational awareness without requiring visual fixation. When visual acquisition is required, the directional sound can give the pilot a more rapid cue to aim the eyes or head. In order to determine the utility and performance of a 3-D auditory display for cockpit applications, a method for generating 3-D auditory cues is required for simulation. Two laboratory systems are described which create, from monaural stimuli, binaural stimuli which can be perceived as localized and stabilized in space, regardless of the listener's head position. Additionally, preliminary results of the localization performance with one approach are presented.”

© All rights reserved Calhoun et al. and/or Human Factors Society

 
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May 23

“ Knowledge is commonly socially constructed, through collaborative efforts towards shared objectives or by dialogues and challenges brought about by different persons' perspectives. ”

-- G. Salomon (in "Distributed Cognitions: Psychological and Educational Considerations")

 
 

Featured chapter

Read the fascinating history of Wearable Computing, told by its father, Steve Mann

Read Steve's chapter !

 
 

Help us help you!

 
 
 
 
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