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KMID : 0917520000070010217
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Journal of Speech Sciences
2000 Volume.7 No. 1 p.217 ~ p.232
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Vowel Fundamental Frequency in Manner Differentiation of Korean Stops and Affricates
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Jang Tae-Yeoub
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Abstract
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In this study, I investigate the role of post-consonantal fundamental frequency (F0) as a cue for automatic distinction of types of Korean stops and affricates. Rather than examining data obtained by restricting contexts to a minimum to prevent the interference of irrelevant factors, a relatively natural speaker independent speech corpus is analysed. Automatic and statistical approaches are adopted to annotate data, to minimise speaker variability, and th evaluate the results. In spite of possible loss of information during those automatic analyses, statistics obtained suggest that vowel F0 is a useful cue for distinguishing manners of articulation of Korean non-continuant obstruents having the same place of articulation, especially of lax and aspirated over the relevant consonants in a specific context where the micro-prosodic effects appear to be manimised. The results confirm the usefulness of this effect in application for Korean phone recognition.
Keywords: microprosody, fundamental frequency, speech recognition
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