Articulation of vowel length contrasts in Australian English

IF 0.8 3区 文学 0 LANGUAGE & LINGUISTICS Journal of the International Phonetic Association Pub Date : 2022-05-05 DOI:10.1017/s0025100322000068
Louise Ratko, Michael Proctor, Felicity Cox
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Abstract

Acoustic studies have shown that in Australian English (AusE), vowel length contrasts are realised through temporal, spectral and dynamic characteristics. However, relatively little is known about the articulatory differences between long and short vowels in this variety. This study investigates the articulatory properties of three long–short vowel pairs in AusE: /iː–ɪ/ beatbit, /ɐː–ɐ/ cartcut and /oː–ɔ/ portpot, using electromagnetic articulography. Our findings show that short vowel gestures had shorter durations and more centralised articulatory targets than their long equivalents. Short vowel gestures also had proportionately shorter periods of articulatory stability and proportionately longer articulatory transitions to following consonants than long vowels. Long–short vowel pairs varied in the relationship between their acoustic duration and the similarity of their articulatory targets: /iː–ɪ/ had more similar acoustic durations and less similar articulatory targets, while /ɐː–ɐ/ were distinguished by greater differences in acoustic duration and more similar articulatory targets. These data suggest that the articulation of vowel length contrasts in AusE may be realised through a complex interaction of temporal, spatial and dynamic kinematic cues.

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澳洲英语中元音长度的发音差异
声学研究表明,在澳大利亚英语(AusE)中,元音长度的差异是通过时间、频谱和动态特征来实现的。然而,相对而言,人们对这种变体中长元音和短元音的发音差异知之甚少。本研究利用电磁发音学研究了AusE中三个长-短元音对的发音特性:/i [i] - / / beat - bit, / [i] - / / cart - cut和/o [i] - / / port - pot。我们的研究结果表明,短元音手势比长元音手势持续时间更短,发音目标更集中。短元音手势的发音稳定时间也比长元音短,到后面辅音的发音过渡时间也比长元音长。长-短元音对的声学持续时间和发音目标相似度之间的关系各不相同:/i / - / /的声学持续时间更相似,发音目标相似度更低,而/i / - / /的声学持续时间差异更大,发音目标更相似。这些数据表明,元音长度差异的发音可能是通过时间、空间和动态运动学线索的复杂相互作用来实现的。
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来源期刊
CiteScore
2.10
自引率
12.50%
发文量
20
期刊介绍: The Journal of the International Phonetic Association (JIPA) is a forum for work in the fields of phonetic theory and description. As well as including papers on laboratory phonetics/phonology and related topics, the journal encourages submissions on practical applications of phonetics to areas such as phonetics teaching and speech therapy, as well as the analysis of speech phenomena in relation to computer speech processing. It is especially concerned with the theory behind the International Phonetic Alphabet and discussions of the use of symbols for illustrating the phonetic structures of a wide variety of languages. JIPA now publishes online audio files to supplement written articles Published for the International Phonetic Association
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