Use of Reflection Coefficients of Burg’s Method for Improvement of Visual Support Way in Pronunciation Practice
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- Karigome Ryosuke
- Graduate School of Science and Technology for Future Life, Tokyo Denki University
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- Hanazaki Izumi
- Graduate School of Science and Technology for Future Life, Tokyo Denki University
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説明
<p>In pronunciation practice, the trainees essentially need interactive supports to progress. We have developed a pronunciation training system, where the lip posture and tongue shape that are estimated by the formants extracted by AR model using Burg’s method are shown to the trainee. Realization of real time operations is one of the most important problems in this system. However, formants estimation requires long computation time. In order to avoid spectrum estimation, we attempt to reconstruct these visual instructions from the reflection coefficients of Burg’s method. Here, we investigate relationship between the acoustic feature or articulation manner of the sound and the reflection coefficients. The vocal tract area function calculated from the reflection coefficient was confirmed to acquire feature of tongue shape extracted from MR image taken during uttering more precisely than the formant. This gave possibility to improve visual support way based on the formants.</p>
収録刊行物
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- システム制御情報学会論文誌
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システム制御情報学会論文誌 31 (6), 220-227, 2018-06-10
一般社団法人 システム制御情報学会
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詳細情報 詳細情報について
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- CRID
- 1390001288070472064
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- NII論文ID
- 130007484406
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- NII書誌ID
- AN1013280X
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- ISSN
- 2185811X
- 13425668
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- NDL書誌ID
- 029035024
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可