Cepstral Peak Prominence in Nondysphonic Children Using Praat and Analysis of Dysphonia in Speech and Voice.
作者信息
Joshi Ashwini, Awan Shaheen N, Rubino Marianna, Devore Danielle, Procter Teresa, Ongkasuwan Julina
机构信息
Department of Communication Sciences and Disorders, University of Houston, TX.
Department of Otolaryngology, Houston Methodist, TX.
出版信息
J Speech Lang Hear Res. 2025 Aug 12;68(8):3733-3747. doi: 10.1044/2025_JSLHR-25-00046. Epub 2025 Jul 2.
PURPOSE
This study examined the effect of age on cepstral peak prominence (CPP) in nondysphonic children between 3;0 and 17;11 (years;months) for two computer programs: Analysis of Dysphonia in Speech and Voice (ADSV) and Praat. Normative estimates for this population, the effect of sex, software, and stimuli on CPP, and the covarying impact of fundamental frequency (0) were examined.
METHOD
CPP and 0 were collected for 103 children (44 males, 59 females) from the vowel /a/ and the all-voiced sentence "We were away a year ago," within the following age ranges: 3;0-6;11, 7;0-10;11, 11;0-14;11, and 15;0-17;11. Effects of age, sex, stimuli, and software were examined using analyses of variance and post hoc means comparisons. The presence and strength of relationships between age, CPP, 0, and measures of CPP using ADSV versus Praat were evaluated using Pearson's and Spearman's correlations. Stepwise multiple regression analyses were computed to predict CPP from age and 0. Estimates of CPP normative cutoffs for Age × Sex groupings were also calculated.
RESULTS
Significant differences between 15;0-17;11 versus younger age children and a significant correlation between age and CPP were observed. Mean CPP values differed by sex, stimuli, and software. Age and 0 are significant predictors of CPP; however, the observed increase in CPP with increasing age in males is primarily due to the substantial decrease in 0 postpuberty. Significant effects of stimuli and software on CPP values were also observed.
CONCLUSIONS
The findings support the hypotheses that CPP is correlated with age during the 3;0-17;11 span, with particular increases in postpubertal children. However, "normative" age-based expectations should be approached with caution since the general effect of age may be superseded by specific changes in 0 where a lowering of 0 is significantly associated with increases in CPP.
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