Vowel onset marker based objective evaluation of Japanese phonemic length contrast produced by non-native speakers

Mee Sonu*, Yanlong Zhang, Hiroaki Kato, Yoshinori Sagisaka

*この研究の対応する著者

研究成果: Conference article査読

抄録

Aiming at an objective evaluation of second language (L2) learner's Japanese timing control, this study proposes an objective measure to predict a subjective measure of L2 speakers' production given by Japanese native evaluators from the view point of goodness of production. The focus here is on phonemic length contrast, e.g., /kako/ "the past" versus /kakko/ "parentheses" and /kaze/ "wind" versus /kaze:/ "taxation" which is difficult for L2 learners particularly when incorporated with speaking rates. In this present study proposed an objective measure using a vowel onset time marker as a key perceptual and psychoacoustic marker to normalize speaking rate variations. The proposed new measure reflects tempo normalization between L2 learners by dividing the proficiency of mora-timing control in production. The experimental results show that both vowel length contrast and consonant length contrast have a significantly higher correlation with the subjective evaluation score in which the coefficient was stable than using a simple duration difference measure. These results suggest that applying the psychoacoustic parameters would be effective to build up an objective evaluation of L2 learners.

本文言語English
論文番号060294
ジャーナルProceedings of Meetings on Acoustics
19
DOI
出版ステータスPublished - 2013
外部発表はい
イベント21st International Congress on Acoustics, ICA 2013 - 165th Meeting of the Acoustical Society of America - Montreal, QC, Canada
継続期間: 2013 6 22013 6 7

ASJC Scopus subject areas

  • 音響学および超音波学

フィンガープリント

「Vowel onset marker based objective evaluation of Japanese phonemic length contrast produced by non-native speakers」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル