Feedback requirements for a direct voice input system

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Authors
  1. Farrell, P.S.E.
  2. Perlin, M.
  3. Ho, G.W.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN)
Abstract
Direct Voice Input (DVI) has been identified as an alternative control method for computer-based systems within military aircraft. Past studies revealed that DVI affords heads up time, which positively influences safety and situational awareness. DVI also requires new crew coordination procedures that effectively redistribute workload. In this study, DVI feedback requirements were investigated for helicopter operations. Perceptual Control Theory was used to determine information requirements, and an experiment was performed to determine the effectiveness of various feedback forms. Data trends show that the heads up and heads down visual displays perform similarly, and both are slightly better than audio feedback in terms of the speed and accuracy of assessing the feedback.
Keywords
Direct Voice Input (DVI);Helicopter operation;Human engineering;Perceptual Control Theory
Report Number
DCIEM-SL-2001-155 — Scientific Literature
Date of publication
05 Aug 2001
Number of Pages
8
DSTKIM No
CA020059
CANDIS No
516710
Format(s):
Hardcopy;Document Image stored on Optical Disk

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