字首塞音嗓音起始時間：9至45個月長期觀察研究

Voice Onset Time of Word-initial Stops: A Longitudinal Study of 9-45 Months

陳麗美 ； 蕭妡屹 ； 方岑

《中華民國音響學刊》 15期 (2011/06) Pp. 83-91

https://doi.org/10.30049/JASRC.201106.0005

摘要

本研究長期分析一對聽障與聽常雙胞胎幼童國語塞音嗓音起始時間(VOT)的異同。本研究語料為幼童9至45個月大與媽媽的自然互動，主要測量送氣及不送氣字首塞音VOT值。結果顯示1)幼童A接受人工電子耳約四個月後就有較穩定VOT值；2)聽障幼童在送氣和不送氣字首塞音的VOT差距比聽常幼童大；3)兩位幼童不送氣塞音比送氣塞音的VOT值穩定，送氣塞音的VOT分佈範圍較不送氣塞音的範圍廣；4)到36個月大，兩位幼童的送氣塞音VOT值都尚未穩定，皆未完全習得送氣塞音以及送氣與不送氣塞音之間的區別。

關鍵字

噪音起始時間 ； 聽障幼兒 ； 國語塞音

並列摘要

Abstract Voice onset time (VOT) was analyzed in voiceless stops of Mandarin produced by a pair of fraternal twins with different hearing abilities. Two sets of stop consonants were examined: aspirated stops and unaspirated stops. Natural interaction between mother and the twins were recorded from 9 to 45 months of age. Praat software was used to measure VOT values. Major findings are: 1) Child A produced more consistent stop VOTs about four months after receiving cochlear implants; 2) The hearing-impaired child had higher VOT values than normal hearing child in aspirated stops and had lower VOT values in unaspirated stops; 3) For both children, VOT values of unaspirated stops were stabilized earlier than aspirated stops and distribution of VOT values for aspirated stops are found to be wider than unaspirated stops; 4) There were no stable VOT patterns of aspirated stops even after 36 months of age for both children.

並列關鍵字

voice onset time ； hearing-impaired child ； Mandarin stops