抄録
In this paper, we propose a method of automatically measuring the segmental duration characteristics of a second-language learner's speech as a means to evaluate language proficiency in terms of speech production. We propose the use of duration differences from native speakers' speech as an objective evaluation score to evaluate the learner's English segmental duration characteristics. To provide flexible evaluation without the need to collect any additional native-English reference speech, we employed predicted normalized segmental durations using a statistical duration model instead of measured raw durations of native reference speech. The proposed evaluation method was tested using English speech data uttered by multiple Thai-native learners' groups with different amounts of experience of English study in English-as-an-o.cial- language countries. An evaluation experiment showed that the proposed measure based on duration differences is strongly correlated with the amount of English study. Moreover, segmental duration differences revealed Thai learners' speech-control characteristics such as stress assignment on word-.nal syllables. These results support the effectiveness of the proposed model-based objective evaluation.
| 元の言語 | English |
|---|---|
| ページ（範囲） | 267-277 |
| ページ数 | 11 |
| ジャーナル | Acoustical Science and Technology |
| 巻 | 31 |
| 発行部数 | 4 |
| DOI | |
| 出版物ステータス | Published - 2010 |
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ASJC Scopus subject areas
- Acoustics and Ultrasonics
これを引用
Model-based automatic evaluation of second-language learner's English segmental duration characteristics. / Hansakunbuntheung, Chatchawarn; Kato, Hiroaki; Sagisaka, Yoshinori.
：: Acoustical Science and Technology, 巻 31, 番号 4, 2010, p. 267-277.研究成果: Article
}
TY - JOUR
T1 - Model-based automatic evaluation of second-language learner's English segmental duration characteristics
AU - Hansakunbuntheung, Chatchawarn
AU - Kato, Hiroaki
AU - Sagisaka, Yoshinori
PY - 2010
Y1 - 2010
N2 - In this paper, we propose a method of automatically measuring the segmental duration characteristics of a second-language learner's speech as a means to evaluate language proficiency in terms of speech production. We propose the use of duration differences from native speakers' speech as an objective evaluation score to evaluate the learner's English segmental duration characteristics. To provide flexible evaluation without the need to collect any additional native-English reference speech, we employed predicted normalized segmental durations using a statistical duration model instead of measured raw durations of native reference speech. The proposed evaluation method was tested using English speech data uttered by multiple Thai-native learners' groups with different amounts of experience of English study in English-as-an-o.cial- language countries. An evaluation experiment showed that the proposed measure based on duration differences is strongly correlated with the amount of English study. Moreover, segmental duration differences revealed Thai learners' speech-control characteristics such as stress assignment on word-.nal syllables. These results support the effectiveness of the proposed model-based objective evaluation.
AB - In this paper, we propose a method of automatically measuring the segmental duration characteristics of a second-language learner's speech as a means to evaluate language proficiency in terms of speech production. We propose the use of duration differences from native speakers' speech as an objective evaluation score to evaluate the learner's English segmental duration characteristics. To provide flexible evaluation without the need to collect any additional native-English reference speech, we employed predicted normalized segmental durations using a statistical duration model instead of measured raw durations of native reference speech. The proposed evaluation method was tested using English speech data uttered by multiple Thai-native learners' groups with different amounts of experience of English study in English-as-an-o.cial- language countries. An evaluation experiment showed that the proposed measure based on duration differences is strongly correlated with the amount of English study. Moreover, segmental duration differences revealed Thai learners' speech-control characteristics such as stress assignment on word-.nal syllables. These results support the effectiveness of the proposed model-based objective evaluation.
KW - Automatic evaluation
KW - Linear regression model
KW - Second-language learning
KW - Segmental duration
UR - http://www.scopus.com/inward/record.url?scp=77954330310&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77954330310&partnerID=8YFLogxK
U2 - 10.1250/ast.31.267
DO - 10.1250/ast.31.267
M3 - Article
AN - SCOPUS:77954330310
VL - 31
SP - 267
EP - 277
JO - Acoustical Science and Technology
JF - Acoustical Science and Technology
SN - 1346-3969
IS - 4
ER -