Prediction of Contextual Speech Intelligibility from Isolated Word Intelligibility Measures The purpose of this study was to evaluate the efficacy of two nonlinear formulae posited by Boothroyd (1978) for prediction of contextual intelligibility from measures of isolated word intelligibility with four different sets of speech intelligibility data. Both of Boothroyd's formulae, Pc = 1 - (1 ? Pi) 2 and ... Research Note
Research Note  |   December 01, 1984
Prediction of Contextual Speech Intelligibility from Isolated Word Intelligibility Measures
 
Author Affiliations & Notes
  • Nicholas Schiavetti
    State University of New York, Geneseo
  • Ronald W. Sitler
    State University of New York, Geneseo
  • Dale Evan Metz
    National Technical Institute for the Deaf at Rochester Institute of Technology, Rochester, NY
  • Robert A. Houde
    Center for Communications Research, Rochester, NY
Article Information
Research Notes
Research Note   |   December 01, 1984
Prediction of Contextual Speech Intelligibility from Isolated Word Intelligibility Measures
Journal of Speech, Language, and Hearing Research, December 1984, Vol. 27, 623-626. doi:10.1044/jshr.2704.623
History: Received June 24, 1983 , Accepted May 2, 1984
 
Journal of Speech, Language, and Hearing Research, December 1984, Vol. 27, 623-626. doi:10.1044/jshr.2704.623
History: Received June 24, 1983; Accepted May 2, 1984

The purpose of this study was to evaluate the efficacy of two nonlinear formulae posited by Boothroyd (1978) for prediction of contextual intelligibility from measures of isolated word intelligibility with four different sets of speech intelligibility data. Both of Boothroyd's formulae, Pc = 1 - (1 ? Pi) 2 and Pc = 1 - (1 ? Pi) 1.5 (1 + Pi), provided excellent fit of measured contextual intelligibility with predicted contextual intelligibility for all sets of data. Attempts to improve correlation coefficients between measured and predicted contextual intelligibility by iterating Boothroyd's suggested exponents did not significantly improve the predictive ability of the original formulae.

Order a Subscription
Pay Per View
Entire Journal of Speech, Language, and Hearing Research content & archive
24-hour access
This Article
24-hour access