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KMID : 1022420180100030009
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Phonetics and Speech Sciences
2018 Volume.10 No. 3 p.9 ~ p.18
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A study of flaps in American English based on the Buckeye Corpus
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Hwang Byeong-Hoo
Kang Seok-Han
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Abstract
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This paper presents an acoustic and phonological study of the alveolar flaps in American English. Based on the Buckeye Corpus, the flapping tokens produced by twenty men are analyzed at both lexical and post-lexical levels. The data, analyzed with Pratt speech analysis, include duration, F2 and F3 in voicing during the flap, as well as duration, F1, F2, F3, and f0 in the adjacent vowels. The results provide evidence on two issues: (1) The different ways in which voiced and voiceless alveolar stops give rise to neutralized flapping stops by following lexical and post-lexical levels, (2) The extent to which the vowel features (height, frontness, and tenseness) affect flapping sounds. The results show that flaps are affected by pre-consonantal vowel features at the lexical as well as post-lexical levels. Unlike previous studies, this study uses the Praat method to distinguish flapped from unflapped tokens in the Buckeye Corpus and examines connections between the lexical and post-lexical levels.
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KEYWORD
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flaps , Buckeye corpus , alveolar stops , lexicon , post-lexicon , duration , F1 , F2 , F3 , f0
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