Türkçe Konuşan Çocuklarda Kepstral Özelliklerin İncelenmesi

Abstract

Changes in pediatric larynx and pediatric voice during developmental processes reveal the necessity of studies of the pediatric population. The main aim of this study is to determine the normative cepstral acoustic data in Turkish speaking children between age of 4.00- 17.11 years, and to determine the age and/or gender-dependent variability of this data. Participants were 160 children between the ages of 4.00-17.11 years. Four groups were composed as follow, Group I; 4.00–6.11 years, Group II; 7.00–10.11 years, Group III; 11.00–14.11 years and Group IV; 15.00–17.11 years. There were fourty children (20 female, 20 male) in each group. Children with hearing loss, voice and speech disorders were excluded from the study. KAY-PENTAX CSL Model 4500 instrument was used for acoustic assessments, 57 different parameters were evaluated under 9 tasks. There were statistically significant differences in 48 parameters according to age and/or gender variables (p<0,05). These differences can be explained by the changes in the laryngeal systems of girls and boys. There was a statistically significant difference between the groups in terms of age and gender in the Fundamental Frequency parameter examined by Multidimensional Voice Program in which /a/ phonation record was analyzed (p<0,05). Cepstral Peak Prominence Fundamental Frequency parameters in 7 tasks except voiceless task were statistically significant differences between the groups by age (p<0,05). There was a statistically significant difference in the L/H Ratio, Cepstral Peak Prominence Fundamental Frequency Standard Deviation and Cepstral Peak parameter according to gender in 6 tasks except nasal and voiceless task (p<0,05). It is concluded that cepstral acoustic evaluation can be used as an appropriate method in the diagnosis process and in determining the efficacy of the treatments/therapies applied with the perceptual and aerodynamic evaluation in the pediatric population.