Journal article
Preliminary evaluation of selected acoustic and glottographic measures for clinical phonatory function analysis
Journal of voice, Vol.2(3), pp.230-244
1988
DOI: 10.1016/S0892-1997(88)80081-X
Abstract
Acoustic and glottographic measures may provide important information that could enhance clinical management and documentation of vocal dysfunction. Acoustic measures such as jitter and shimmer reflect “short-term” perturbations, or instabilities of the voice, and the coefficients of variation for frequency and for amplitude reflect “long-term” perturbations. Interpretations of these acoustic measures are based on the assumption that vocal perturbations may be related to laryngeal tissue abnormalities, asymmetries in vocal fold movement, or neuromuscular fluctuations in the respiratory, laryngeal, or vocal tract systems. The abduction quotient is a glottographic measure related to laryngeal adduction and is obtained from an analysis of the electroglottograph signal. The adduction measure appears to be independent of the acoustic perturbation measures. Interpretations of the acoustic and adductory measures may, therefore, complement each other for greater understanding of a patient's laryngeal behavior. Visual displays of the acoustic and glottographic signals also are discussed to demonstrate their value in voice signal interpretations. Case studies illustrate potential interpretations of the acoustic perturbation and abduction quotient measures.
Details
- Title: Subtitle
- Preliminary evaluation of selected acoustic and glottographic measures for clinical phonatory function analysis
- Creators
- Ronald C. Scherer - Denver Center for the Performing ArtsWilbur J. Gould - Denver Center for the Performing ArtsIngo R. Titze - University of IowaArlen D. Meyers - University of Colorado HealthRobert T. Sataloff - Thomas Jefferson University
- Resource Type
- Journal article
- Publication Details
- Journal of voice, Vol.2(3), pp.230-244
- Publisher
- Mosby, Inc
- DOI
- 10.1016/S0892-1997(88)80081-X
- ISSN
- 0892-1997
- eISSN
- 1873-4588
- Number of pages
- 15
- Language
- English
- Date published
- 1988
- Academic Unit
- School of Music; Communication Sciences and Disorders
- Record Identifier
- 9984719566902771
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