Computer Programs for Measuring Variations in Speech

Abstract

The measurement of variations in speech is investigated. Computer programs developed to study speech patterns determine the word boundaries and spacing, the fundamental pitch and the formants of words, and classification of the speech as voiced or unvoiced. The potential use of the computer is program demonstrated using synthetic speech. A synthetic voice generator was used to generate voice patterns from a known speaker in two different voice patterns by changing pitch and breathing parameters. The patterns were digitized and processed on a VAX 11/780 computer for analysis. The computed parameters agree with those used to generate the synthetic speech. It is planned to use these programs in future investigations of the relation between worked load stress and voice variation in human factors testing of subjects who perform data entry tasks using automatic voice recognition systems.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1989
Accession Number
ADA211126

Entities

People

  • Christopher C. Smyth

Organizations

  • Human Engineering Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Automated Speech Recognition
  • Computer Programming
  • Computer Programs
  • Computers
  • Consonants
  • Engineering
  • Frequency
  • Frequency Shift
  • Generators
  • Human Factors Engineering
  • Identification
  • Intensity
  • Measurement
  • Operating Systems
  • Recognition
  • Spectra

Readers

  • Computer Science.
  • Speech Processing/Speech Recognition.

Technology Areas

  • Space