Relationships Between Speech Recognition Threshold, Average Hearing Level, and Speech Importance Noise Detection Threshold The aim of this study was to determine (a) if the speech importance noise detection threshold (SINDT) could be used as an accurate estimator of speech recognition threshold (SRT), and (b) whether the SINDT correlates well with various measures of the pure-tone threshold average (PTA). Pure-tone threshold, SRT, and SINDT ... Research Article
Research Article  |   October 01, 1992
Relationships Between Speech Recognition Threshold, Average Hearing Level, and Speech Importance Noise Detection Threshold
 
Author Affiliations & Notes
  • Tomasz Letowski
    The Pennsylvania State University University Park
  • Patti Hergenreder
    The Pennsylvania State University University Park
  • Houchin Tang
    The Pennsylvania State University University Park
  • Contact author: Tomasz Letowski, PhD, The Pennsylvania State University, Department of Communication Disorders, 5 Moore Building, University Park, PA 16802.
Article Information
Hearing & Speech Perception / Acoustics / Hearing Disorders / Hearing / Research Articles
Research Article   |   October 01, 1992
Relationships Between Speech Recognition Threshold, Average Hearing Level, and Speech Importance Noise Detection Threshold
Journal of Speech, Language, and Hearing Research, October 1992, Vol. 35, 1131-1136. doi:10.1044/jshr.3505.1131
History: Received September 24, 1991 , Accepted January 2, 1992
 
Journal of Speech, Language, and Hearing Research, October 1992, Vol. 35, 1131-1136. doi:10.1044/jshr.3505.1131
History: Received September 24, 1991; Accepted January 2, 1992

The aim of this study was to determine (a) if the speech importance noise detection threshold (SINDT) could be used as an accurate estimator of speech recognition threshold (SRT), and (b) whether the SINDT correlates well with various measures of the pure-tone threshold average (PTA). Pure-tone threshold, SRT, and SINDT tests were administered to 94 adults with various degrees of hearing loss. The results demonstrated that SRT can be accurately predicted from SINDT and that these two are highly correlated (r= 0.97). Since a SINDT measurement takes less time than SRT determination, the SINDT test may be recommended as an alternative for SRT in some applications.

Acknowledgments
The authors would like to thank W. Daniel Richards for his help in generation of the stimuli and Tom Frank and Diana Wright for their help in manuscript preparation. The authors are indebted to Randall Beattie, Robert Margolis, and Richard Wilson for their very thorough and helpful critical reviews of the original manuscript. All calculations and statistical graphs presented in this study were made with SYSTAT package (Wilkinson, 1990).
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