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Convention Paper

Caution and Warning Alarm Design and Evaluation for NASA CEV Auditory Displays

Authors: Begault, Durand; Godfroy, Martine; Holden, Kritina; Sandor, Aniko

AES Convention 124 · Paper 7493 · May 2008

Abstract

The design of caution-warning signals for NASA’s Crew Exploration Vehicle (CEV) and other future spacecraft will be based on both best practices based on current research and evaluation of current alarms. A design approach is presented based upon cross-disciplinary examination of psychoacoustic research, human factors experience, aerospace practices, and acoustical engineering requirements. A listening test with thirteen participants was performed involving ranking and grading of current and newly developed caution-warning stimuli under three conditions: (1) alarm levels adjusted for compliance with ISO 7731, "Danger signals for work places – Auditory Danger Signals", (2) alarm levels adjusted to an overall 15 dBA s/n ratio and (3) simulated codec low-pass filtering. The resulting analyses include determination of sounds that were judged as inappropriate, independent of condition.

Details

Published in
AES Convention 124
AES Convention
124
Paper number
7493
Publication date
May 6, 2008
Session subject
Psychoacoustics, Perception, and Listening Tests
Affiliation
NASA Ames Research Center;San Jose State University Foundation;LZ Technology;Lockheed Martin Corporation (See document for exact affiliation information.)
Type
Convention Paper