Quantifying the Relation Between Speech Quality and Speech Intelligibility The purpose of the present research was to examine the relation between speech quality and speech intelligibility. Speech quality measurements were made using continuous discourse and a category rating procedure for the following dimensions: intelligibility, pleasantness, loudness, effort, and total impression. Measurements were made using a group of listeners with ... Research Article
Research Article  |   June 01, 1995
Quantifying the Relation Between Speech Quality and Speech Intelligibility
 
Author Affiliations & Notes
  • Jill E. Preminger
    University of Minnesota Minneapolis
  • Dianne J. Van Tasell
    University of Minnesota Minneapolis
  • Currently affiliated with Kean College of New Jersey.
    Currently affiliated with Kean College of New Jersey.×
  • Contact author: Jill E. Preminger, PhD, Department of Special Education and Individualized Services, Kean College of New Jersey, Union, NJ 07083. E-mail: jpreming@turbo.kean.edu
Article Information
Speech, Voice & Prosodic Disorders / Hearing & Speech Perception / Acoustics / Hearing / Research Articles
Research Article   |   June 01, 1995
Quantifying the Relation Between Speech Quality and Speech Intelligibility
Journal of Speech, Language, and Hearing Research, June 1995, Vol. 38, 714-725. doi:10.1044/jshr.3803.714
History: Received May 12, 1994 , Accepted January 17, 1995
 
Journal of Speech, Language, and Hearing Research, June 1995, Vol. 38, 714-725. doi:10.1044/jshr.3803.714
History: Received May 12, 1994; Accepted January 17, 1995

The purpose of the present research was to examine the relation between speech quality and speech intelligibility. Speech quality measurements were made using continuous discourse and a category rating procedure for the following dimensions: intelligibility, pleasantness, loudness, effort, and total impression. Measurements were made using a group of listeners with normal hearing for a set of stimulus conditions in which intelligibility varied, and for a set of stimulus conditions in which intelligibility was held constant near 100%. When ratings were made for a set of stimulus conditions in which intelligibility was allowed to vary (a) intersubject reliability was high (i.e., different listeners interpreted the dimensions in a similar manner); and (b) the speech quality dimensions of intelligibility, effort, and loudness were indistinguishable. When ratings were made for a set of stimulus conditions in which intelligibility was held constant (a) intersubject reliability was reduced, indicating that different listeners interpreted the dimensions in different ways; (b) most listeners rated each dimension differently, indicating that the dimensions were unique; and (c) across listeners, no single dimension was highly correlated with total impression. These results can be used in order to examine the relation between speech quality and speech intelligibility.

Acknowledgments
This research was supported by NIDCD Grant DC00110 and the Bryng Bryngelson Communication Disorders Fund at the University of Minnesota. We wish to thank M. Davison, R. Schlauch, C. Speaks, and N. Viemeister for their guidance during the completion of this project.
Order a Subscription
Pay Per View
Entire Journal of Speech, Language, and Hearing Research content & archive
24-hour access
This Article
24-hour access