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KMID : 1022420110030030049
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Phonetics and Speech Sciences
2011 Volume.3 No. 3 p.49 ~ p.58
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A Research on Response Time and Identification of English High Back Vowels
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Yun Yung-Do
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Abstract
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This study investigates how American English high back vowels are identified. American English and Korean speakers participated in a phonetic experiment for this study. This study shows their response times of the vowels and discusses how the speakers identified them. For the experiment I used a synthesized vowel continuum between American English /u/ and /0/ based on American English male speakers" voice obtained by Peterson and Barney (1952). I manipulated spectral steps and vowel duration of the stimuli. The statistical results showed that American English speakers were not able to distinguish the stimuli based on spectral quality. Instead they relied on vowel duration. This suggests that the American English high back vowels have changed since Peterson and Barney recorded them in 1952. The Korean speakers also relied on vowel duration, not spectral quality since they could not distinguish them. American speakers" response times of these vowels were not affected by both spectral quality and vowel duration. Koreans" response times were affected by vowel durations only.
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KEYWORD
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English, high back vowels, perception, response, meige
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