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KMID : 0917520000070020085
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Journal of Speech Sciences
2000 Volume.7 No. 2 p.85 ~ p.95
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The H1*-H2* Measure
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Ahn Hyun-Kee
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Abstract
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In this paper, the H1*-H2* measure is introduced and exact procedures for obtaining the H1*-H2* value are fully specified. The H1*-H2* measure (a corrected difference in dB between the first and second harmonicsP has been devised to provide an acoustic correlate of the phonation mode of a vowel following a consonant. With this measure, we can investigate the phonation mode of a vowel that is free from the F1 amplitude perturbaion effect caused by the preceding consonant, which is especially salient at the voicing onset position of the vowel. For identical research purposes, on the other hand, the H1-H2 measure (the observed difference in dB between the first and second harmonic) hs been employed in many previous studies. This paper compares these two measures by illustrating experimental results of exploring post-release phonation modes of vowels following the different manner classes of stop consonants in Korean ??i.e., the tense, lenis, and aspirated stops.
Keywords : H1*-H2* measure, H1-H2 measure, phonation, Korean stop sounds
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