Effects of Speech Intensity on the Callsign Acquisition Test (CAT) and Modified Rhyme Test (MRT) Presented in Noise

Abstract

This study sought to evaluate the effect of speech intensity on performance of the Callsign Acquisition Test (CAT) and Modified Rhyme Test (MRT) presented in noise. Fourteen normally hearing listeners performed both tests in 65 dB A white background noise. Speech intensity varied while background noise remained constant to form speech-to-noise ratios. Results showed that CAT recognition scores were significantly higher than MRT scores at the same SNRs; however, the scores from both tests were highly correlated and their relationship for the SNRs tested can be expressed by a simple linear function. The concept of CAT can be easily ported to other languages for testing speech communication under adverse listening conditions.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2012
Accession Number
ADA564752

Entities

People

  • Maranda Mcbride
  • Misty Blue-terry
  • Tomasz Letowski

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Human Systems

DTIC Thesaurus Topics

  • Acoustics
  • Acquisition
  • Background Noise
  • Correlation Analysis
  • Engineering
  • Human Factors Engineering
  • Intelligibility
  • Intensity
  • Language
  • Military Personnel
  • Military Research
  • Noise
  • North Carolina
  • Recognition
  • Systems Engineering
  • United States
  • White Noise

Readers

  • Image Processing and Computer Vision.
  • Psychometric Testing or Psychological Assessment.
  • Speech Processing/Speech Recognition.