JSLHR
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

Journal of Speech and Hearing Research Vol.27 2-6 March 1984.
© American Speech-Language-Hearing Association
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow My Folders
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Yumoto, E.
Right arrow Articles by Okamura, H.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Yumoto, E.
Right arrow Articles by Okamura, H.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Facebook   Add to Reddit   Add to Technorati   Add to Twitter  
What's this?

Harmonics-to-Noise Ratio and Psychophysical Measurement of the Degree of Hoarseness

Eiji Yumoto 1
Yumi Sasaki 1

Hiroshi Okamura 1
1 Ehime University, Ehime, Japan

The degree of hoarseness can be evaluated by judging the extent to which noise replaces the harmonic structure in the Spectrogram. The relationship between these two components was quantified as the harmonics-to-noise (H/N) ratio. Eighty-seven phonatory samples (sustained vowel /a/), ranging from nearly normal to severely hoarse, were analyzed. The H/N ratio, the spectrographic classification, and cycle-to-cycle pitch perturbations (jitter) each showed a significant correlation with the psychophysical measurement of the degree of hoarseness (r = .809, .805, and .712, respectively; p < .001). The analysis also revealed that the correlations of the psychophysical measurement of the degree of hoarseness with the first two parameters were significantly higher than that with jitter (p < .05). Moreover, the spectrographic classification is subjective, and its scale is discrete and coarse. Therefore, the H/N ratio seems to be the most applicable in the clinic as a quantitative index of the degree of hoarseness.

Submitted on February 16, 1983
Accepted on August 31, 1983


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Digg Digg   Add to Facebook Facebook   Add to Reddit Reddit   Add to Technorati Technorati   Add to Twitter Twitter    What's this?




HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
All ASHA Journals AJA AJSLP JSLHR LSHSS
Copyright © 1984 by the American Speech-Language-Hearing Association.