The Effect of Helicopter Vibration on the Accuracy of a Voice Recognition System

Abstract

Speech recognition technology could be especially advantageous to single-crewmember helicopters like the Light Helicopter Family (LHX). Before speech recognition can be considered a viable technology for helicopters, several issues remain to be resolved. One of these is changes in the voice that occur as a result of stress, noise, and vibration. This paper reports the results of an investigation conducted to determine the effect of vibration-induced changes in the voice on the accuracy of a speech recognition system. A series of flight tests were conducted using 12 participants and 8 different flight maneuvers. Data were collected with the participants speaking 50 phonetically balanced words into the speech recognizer while seated in the copilot's seat of a UH-1H helicopter during each of the 8 flight maneuvers. The results indicate that speech recognition system accuracy is not affected by helicopter vibration.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1986
Accession Number
ADA174284

Entities

People

  • Christopher C. Smyth
  • Frank J. Malkin
  • Thomas W. Dennison

Organizations

  • Human Engineering Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Space

DTIC Thesaurus Topics

  • Accuracy
  • Acoustics
  • Air Force
  • Aircraft Equipment
  • Aircrafts
  • Analysis Of Variance
  • Automated Speech Recognition
  • Engineering
  • Environment
  • Flight
  • Flight Maneuvers
  • Ground Effect
  • Helicopters
  • Human Factors Engineering
  • Level Flight
  • Statistical Analysis
  • Test And Evaluation

Readers

  • Aviation Science / Aeronautics.
  • Speech Processing/Speech Recognition.
  • Structural Dynamics.

Technology Areas

  • AI & ML
  • AI & ML - Autonomous Systems