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KMID : 0917520000070020209
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Journal of Speech Sciences
2000 Volume.7 No. 2 p.209 ~ p.224
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Automatic Detection of Intonational and Accentual Phrases in Korea Standard Continuous Speech
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Abstract
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This paper proposes an automatic detection method of intonational and accentual phrases in Korean standard continuous speech. We use the pause over 150 msec for detecting intonational phrases, and extract accentual phrases from the intonational phrases by analyzing syllables and pitch contours.
The speech data for the experiment are composed of seven male voices and two female voice which read the texts of the fable "the ant and the grasshopper" and a newspaper article "manmulsang" in normal speed and in Korean standard variation. the results of the experiment shows that the detection rate of intonational phrases is 95% on the average and that of accentual phrases is 73%.
This detection rate implies that we can segment the continuous speech into smaller units(i.e. prosodic phrases) by using the prosodic information and so the objects of speech recognition can narrow down to words or phrases in continuous speech.
Keywords : accentual phrase, continuous speech recognition, intonational phrase, segmentation of prosodic units
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