Engineering topics

Bucher, N. M.

Publications and source records attributed to Bucher, N. M..

3 records

NASA NTRS1984

Alerting prefixes for speech warning messages

A major question posed by the design of an integrated voice information display/warning system for next-generation helicopter cockpits is whether an alerting prefix should precede voice warning messages; if so, the characteristics desirable in such a cue must also be addressed. Attention is presently given to the results of a study which ascertained pilot response time and response accuracy to messages preceded by either neutral cues or the cognitively appropriate semantic cues. Both verbal cues and messages were spoken in direct, phoneme-synthesized speech, and a training manipulation was included to determine the extent to which previous exposure to speech thus produced facilitates these messages' comprehension. Results are discussed in terms of the importance of human factors research in cockpit display design.

Bucher, N. M.↗

NASA NTRS1983

Voice interactive electronic warning system (Views)

The ability of military helicopters to penetrate the Forward Line of Troops (FLOT) has increased in connection with the utilization of low-level 'Nap-of-the-Earth' (NOE) flying procedures. However, the workload of the pilot engaged in the implementation of the required maneuvers is very high. Possibilities for reducing this workload are being investigated. The present study is concerned with the introduction of an integrated warning system in the cockpit. An integrated warning system simulation study is discussed, taking into account aspects of methodology, and results. Three voice types were evaluated, including male digitized, female digitized, and digitized.

Voorhees, J. W.↗

NASA NTRS1983

Voice interactive electronic warning systems (VIEWS) - An applied approach to voice technology in the helicopter cockpit

The cockpit has been one of the most rapidly changing areas of new aircraft design over the past thirty years. In connection with these developments, a pilot can now be considered a decision maker/system manager as well as a vehicle controller. There is, however, a trend towards an information overload in the cockpit, and information processing problems begin to occur for the rotorcraft pilot. One approach to overcome the arising difficulties is based on the utilization of voice technology to improve the information transfer rate in the cockpit with respect to both input and output. Attention is given to the background of speech technology, the application of speech technology within the cockpit, voice interactive electronic warning system (VIEWS) simulation, and methodology. Information subsystems are considered along with a dynamic simulation study, and data collection.

Voorhees, J. W.↗