Acoustic-temporal aspects of stop-plosives in the speech of Persian-speaking children with cleft lip and palate.

Acoustic-temporal aspects of stop-plosives in the speech of Persian-speaking children with cleft lip and palate.

Int J Speech Lang Pathol. 2016 Sep 26;:1-9

Authors: Eshghi M, Preisser JS, Bijankhan M, Zajac DJ

Abstract
PURPOSE: The main objective was to examine temporal parameters of stop-plosives in Persian-speaking children with repaired cleft lip and palate (CLP).
METHOD: Eleven children with repaired bilateral CLP and 20 typically-developing children participated in the study. Stop-gap duration (SGD) and voice-onset time (VOT) were measured based on digital waveform and spectrographic displays.
RESULT: Separate linear mixed model analyses showed significantly longer SGDs for children with CLP for all plosives in word-mid and final positions. Furthermore, children with CLP tend to produce longer VOTs for all voiceless plosives.
CONCLUSION: Persian-speaking children with repaired CLP prolong stop-gap segments, similar to findings reported for English-speaking children with CLP. Prolonged segments may be due to an active strategy to increase oral air pressure and/or improve perceptual accuracy of speech segments.

PMID: 27666091 [PubMed - as supplied by publisher]

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