Perceived Urgency of Warning Signals Determined Using a Forced Choice Pair Comparison Technique

Abstract

Following work by RAE (Farnborough), ISVR (Southampton Univ.) and APU (MRC, Cambridge) a set of 40 high urgency warning signals were designed for RAE. The spectral content of the signals was designed to compensate for the acoustic characteristics of the aircraft, flight helmet and communication system. An experiment was designed to select, from these 40 signals, the six which were perceived as conveying the greatest urgency, and then, to assess these in a set including four previously selected signals already in use in experimental auditory warning signals. The data confirmed that those signals intended to be of the highest urgency were ranked correctly and that the relationships, in terms of perceived urgency, amongst the complete set of ten signals was as predicted. A self-paced learning experiment was performed which showed that the signals were easily learnt and that there was no significant confusion amongst them. Keywords: Psychoacoustics; Auditory perception; Emergency acoustic warning signals. Great Britain.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1988
Accession Number
ADA205481

Entities

People

  • J. A. Chillery
  • J. B. Collister

Organizations

  • Royal Aircraft Establishment

Tags

Communities of Interest

  • Air Platforms
  • Space

DTIC Thesaurus Topics

  • Aircrafts
  • Auditory Perception
  • Birds
  • Communication Systems
  • Computers
  • Digital Computers
  • Flight Helmets
  • Foreign Languages
  • Helicopters
  • Language
  • Law
  • Learning
  • Neurobehavioral Manifestations
  • Procurement
  • Simulations
  • Simulators
  • Square Waves

Readers

  • Acoustical Oceanography.
  • Aviation Science / Aeronautics.
  • Systems Analysis and Design