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초록· 키워드
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Prominence of speech, which is often called ‘accent,’ affects the fluency of speaking American English greatly. In this paper, we present an accurate prominence detection method that can be utilized in computer-aided language learning (CALL) systems. We employed pitch movement, overall syllable energy, 300-2200 ㎐ band energy, syllable duration, and spectral and temporal correlation as features to model the prominence of speech. After the features for vowel syllables of speech were extracted, prominent syllables were classified by SVM (Support Vector Machine). To further improve accuracy, the differences in characteristics of neighboring syllables were added as additional features. We also applied a speech recognizer to extract more precise syllable boundaries. The performance of our prominence detector was measured based on the Intonational Variation in English (IViE) speech corpus. We obtained 84.9% accuracy which is about 10% higher than previous research.
목차
ABSTRACT
1. 서론
2. 음 특징 추출
3. 돋들림 판별 방법
4. 실험 결과 및 분석
5. 결론
감사의 글
참고문헌
참고문헌 (13)
참고문헌 신청
1. [단행본] - Cook, A / 2007 / AAT-미국식 영어발음 집중훈련 워크북 / 윌북 : 18 ~ 37
2. [학술지(정기간행물)] - Tamburini, F / 2005 / An automatic system for detecting prosodic prominence in American English continuous speech / International Journal of Speech Technology 8 : 33 ~ 44
3. [학술지(정기간행물)] - Kochanski, G / 2005 / Loudness predicts prominence: fundamental frequency lends little / J. Acoust. Soc. Amer 118 (2) : 1038 ~ 1054
4. [학술지(정기간행물)] - Wang, D / 2007 / An acoustic measure for word prominence in spontaneous speech in Audio, Speech, and Language Processing / IEEE 15 (2) : 690 ~ 701
5. [학위논문] - Bagshaw, P. C / 1994 / Automatic Prosodic Analysis for Computer-Aided Pronunciation Teaching / 박사 / University of Edinburgh
2. [학술지(정기간행물)] - Tamburini, F / 2005 / An automatic system for detecting prosodic prominence in American English continuous speech / International Journal of Speech Technology 8 : 33 ~ 44
3. [학술지(정기간행물)] - Kochanski, G / 2005 / Loudness predicts prominence: fundamental frequency lends little / J. Acoust. Soc. Amer 118 (2) : 1038 ~ 1054
4. [학술지(정기간행물)] - Wang, D / 2007 / An acoustic measure for word prominence in spontaneous speech in Audio, Speech, and Language Processing / IEEE 15 (2) : 690 ~ 701
5. [학위논문] - Bagshaw, P. C / 1994 / Automatic Prosodic Analysis for Computer-Aided Pronunciation Teaching / 박사 / University of Edinburgh
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UCI(KEPA) : I410-ECN-0101-2010-701-002124906