Measuring Articulation Rate: A Comparison of Two Methods Purpose Mean articulatory rate (MAR) is an alternative approach to measure articulation rate and is defined as the mean of 5 rate measures in minimally 10 to maximally 20 consecutive syllables in perceptually fluent speech without pauses. This study examined the validity of this approach. Method Reading and ... Research Note
Research Note  |   November 08, 2018
Measuring Articulation Rate: A Comparison of Two Methods
 
Author Affiliations & Notes
  • Marjan Cosyns
    Department of Speech, Language, and Hearing Sciences, Ghent University, Belgium
  • Myriam Meulemans
    Department of Speech, Language, and Hearing Sciences, Ghent University, Belgium
  • Ellen Vermeulen
    Department of Speech, Language, and Hearing Sciences, Ghent University, Belgium
  • Lauranne Busschots
    Department of Speech, Language, and Hearing Sciences, Ghent University, Belgium
  • Paul Corthals
    Department of Speech, Language, and Hearing Sciences, Ghent University, Belgium
    Faculty of Education, Health, and Social Work, Ghent University College, Belgium
  • John Van Borsel
    Department of Speech, Language, and Hearing Sciences, Ghent University, Belgium
  • Disclosure: The authors have declared that no competing interests existed at the time of publication.
    Disclosure: The authors have declared that no competing interests existed at the time of publication. ×
  • Correspondence to Marjan Cosyns: marjan.cosyns@gmail.com
  • Editor-in-Chief: Julie Liss
    Editor-in-Chief: Julie Liss×
Article Information
Speech, Voice & Prosody / Speech / Research Note
Research Note   |   November 08, 2018
Measuring Articulation Rate: A Comparison of Two Methods
Journal of Speech, Language, and Hearing Research, November 2018, Vol. 61, 2772-2778. doi:10.1044/2018_JSLHR-S-17-0251
History: Received June 28, 2017 , Revised November 17, 2017 , Accepted June 14, 2018
 
Journal of Speech, Language, and Hearing Research, November 2018, Vol. 61, 2772-2778. doi:10.1044/2018_JSLHR-S-17-0251
History: Received June 28, 2017; Revised November 17, 2017; Accepted June 14, 2018

Purpose Mean articulatory rate (MAR) is an alternative approach to measure articulation rate and is defined as the mean of 5 rate measures in minimally 10 to maximally 20 consecutive syllables in perceptually fluent speech without pauses. This study examined the validity of this approach.

Method Reading and spontaneous speech samples were collected from 80 typically fluent adults ranging in age between 20 and 59 years. After orthographic transcription, all samples were subjected to an articulation rate analysis first using the prevailing “global” method, which takes into account the entire speech sample and involves manipulation of the speech sample, and then again applying the MAR method. Paired-samples t tests were conducted to compare global measurements to MAR measurements.

Results For both spontaneous speech and reading, a strong correlation was found between the 2 methods. However, for both speech tasks, the paired-samples t tests revealed a significant difference with MAR values being higher than the global method values.

Conclusions The MAR method is a valid method to measure articulation rate. However, it cannot be used interchangeably with the prevailing global method. Further standardization of the MAR method is needed before general clinical use can be suggested.

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