Evaluation of the Vocal Performance of Children Using a Voice Range Profile Index Voice range profiles (VRPs) were analyzed according to 11 frequency, intensity, and morphological characteristics for 94 normal children and 136 children with vocal fold pathologies (ages 6–11 years). Normative data are presented showing marked differences between the groups. Using a specific combination of the child's age, the highest vocal fundamental ... Research Article
Research Article  |   April 01, 1998
Evaluation of the Vocal Performance of Children Using a Voice Range Profile Index
 
Author Affiliations & Notes
  • Louis Heylen
    University of Antwerp Belgium
  • Floris L. Wuyts
    University of Antwerp Belgium
  • Fons Mertens
    University of Antwerp Belgium
  • Marc De Bodt
    University of Antwerp Belgium
  • Jos Pattyn
    University of Antwerp Belgium
  • Christophe Croux
    University of Antwerp Belgium
  • Paul H. Van de Heyning
    University of Antwerp Belgium
  • Contact author: Floris L. Wuyts, PhD, University Hospital of Antwerp, Department of Otorhinolaryngology and Head and Neck Surgery, Wilrijkstraat 10, B-2650 Edegem, Belgium. Email: wuyts@uia.ua.ac.be
  • Currently affiliated with Université Libre de Bruxelles, Brussels, Belgium.
    Currently affiliated with Université Libre de Bruxelles, Brussels, Belgium.×
Article Information
Speech, Voice & Prosodic Disorders / Voice Disorders / Speech, Voice & Prosody / Speech / Research Articles
Research Article   |   April 01, 1998
Evaluation of the Vocal Performance of Children Using a Voice Range Profile Index
Journal of Speech, Language, and Hearing Research, April 1998, Vol. 41, 232-238. doi:10.1044/jslhr.4102.232
History: Received January 7, 1997 , Accepted October 27, 1997
 
Journal of Speech, Language, and Hearing Research, April 1998, Vol. 41, 232-238. doi:10.1044/jslhr.4102.232
History: Received January 7, 1997; Accepted October 27, 1997

Voice range profiles (VRPs) were analyzed according to 11 frequency, intensity, and morphological characteristics for 94 normal children and 136 children with vocal fold pathologies (ages 6–11 years). Normative data are presented showing marked differences between the groups. Using a specific combination of the child's age, the highest vocal fundamental frequency, the lowest intensity, and the slope of the upper VRP contour, a Voice Range Profile Index for Children (VRPIc) may be constructed using discriminant analysis. It is shown how the VRPIc can be used to screen children for vocal disorder or to quantitatively assess the effectiveness of voice treatment. Since the group means of the VRPIc for healthy and dysphonic children are scaled to +10 and –10, respectively, the VRPIc enables the clinician to rate a child's vocal performance with reference to healthy and dysphonic children in general. The sensitivity and specificity of this method was found to be 90% and 83%, respectively.

Acknowledgments
We wish to thank Geert Molenbergs for his useful comments, Soetkin Debelder for the syntax check, as well as Liebeth Van Gool for her efforts to collect additional post-treatment voice range profiles.
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