ALTERNATIVE STRATEGIES IN THE EVALUATION OF SPEECH SYSTEMS

Abstract

The report summarizes the results of a program of research concerned with the perception of degraded speech in normal and pathological listeners. The comparisons were derived from performance in a two-category judgment task where the anchor values remain accessible to the subject and under the control of the experimenter. Response decisions and frequency of anchor testings are recorded together with decision times in computer compatible tape format. In addition, studies were designed to examine selected features of utility effects and applications of unidimensional and multidimensional scaling procedures. The respective sections of this report describe (1) the development and applications of the modified, non-verbal psychophysical technique; (2) the design of a data collection system; (3) variations in response utility; and (4) selected scaling procedures. These investigations were shown to be particularly appropriate for assessments of communication with vocoded materials in addition to suggesting alternative experimental paradigms for the study of audiological and perceptual problems.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1969
Accession Number
AD0694100

Entities

People

  • David I. Mostofsky

Tags

Communities of Interest

  • Human Systems
  • Space

DTIC Thesaurus Topics

  • Acoustic Signals
  • Air Force
  • Analysis Of Variance
  • Automated Speech Recognition
  • Computer Programming
  • Computer Programs
  • Computers
  • Data Analysis
  • Data Science
  • Digital Data
  • Ear
  • Intelligibility
  • Magnetic Tape
  • Medical Personnel
  • Psychology
  • Recording Systems
  • Statistical Analysis

Readers

  • Regression Analysis.
  • Speech Processing/Speech Recognition.
  • Team-Based Human-Centered Cognitive Task Decision Making and Information Performance.