NextGen Flight Deck Data Comm : Auxiliary Synthetic Speech Phase II
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2015-07-01
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Edition:Technical report
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Abstract:Data Comm—a text-based controller-pilot communication system—is expected to yield several NextGen safety and efficiency benefits. With Data Comm, communication becomes a visual task, and may potentially increase head-down time on the flight deck as crews interact with the display. This study examined the feasibility of supplementing Data Comm with synthetic speech in commercial, en-route operations. To this end, 32 air-transport pilots (16 flightcrews) flew two experimental conditions in a Boeing 737-800 fixed-base simulator. In one condition, Data Comm was implemented with a text-only display, and, in the other it was implemented with a text display and synthetic speech that annunciated each message (text+speech). Results indicated that the text+speech display aided the performance of flightcrews compared to text only, without introducing additional complications. Relative to the text-only display, the text+speech display yielded less head-down time. Flightcrews did not delay opening or acknowledging a text+speech message when the party line was active. The majority of pilots reported that the text+speech display was easy to use, helpful, and not distracting; however, this acceptance was attenuated in major-airline pilots. Taken together, these results provide preliminary guidance for aircraft certification regarding the use and implementation of synthetic speech on the flight deck.
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