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KMID : 0917520050120030201
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Journal of Speech Sciences
2005 Volume.12 No. 3 p.201 ~ p.209
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Acoustic Evidence for the Development of Aspiration Feature in Putonghua Stops
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Han Ji-Youn
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Abstract
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This study was investigated developmental temporal features in Putonghua-speaking children. The total of 212 children between the ages 2;6 and 6;5 participated in Shanghai. Speech materials were constructed according to aspiration feature in stop sounds of Putonghua. Six words were selected in this study. A voice onset time was measured. Non-parametric procedures were employed for all the analyses. The VOT value across bilabial, alveolar, and velar stops was significantly differed between aspirated and unaspirated stops for each age group. Effect of age is. significant for unaspirated stops. It is clear that each of Putonghua stops showed decreasing mean and standard deviation. The overshoot phenomenon of VOT was apparent from the age of 2;6-2;11 to 4;6-4;11. There was high variability in the production of lag time for aspirated stops.
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KEYWORD
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development, Putonghua, voice onset time, aspiration
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