Comparison of several acoustic features for the vowel sequence reproduction of a talking robot

Vo Nhu Thanh, Hideyuki Sawada

研究成果: Conference contribution

抄録

This study compares several acoustic features for developing an automatic vowel sequence reproduction system for a talking robot, which is a mechanical vocalization system modeling the human articulatory system. Matlab-based control system is used to analyze a recorded sound and drives the articulatory motors of the talking robot. A novel method based on short-time energy analysis is used to extract a human speech and translate into a sequence of sound elements for the sequence of vowels reproduction. Then, several phonemes detection methods including the direct cross-correlation analysis, the linear predictive coding (LPC) association, the partial correlation (PARCOR) coefficients analysis, and the formant frequencies comparison are applied to each sound element to give the corrected command for the talking robot to repeat the sound sequentially. Finally, experiments to compare these techniques and verify the working behavior of the robot are performed. The result of the tests indicates that the robot is able to repeat a sequence of vowels spoken by a human with a successful rate of more than 70% for the PARCOR analysis technique and the formant frequencies comparison technique. The greatest accuracy for repeating the sequence is given by the formant comparison method, while the direct cross-correlation method delivers the least accuracy.

本文言語English
ホスト出版物のタイトル2016 IEEE International Conference on Mechatronics and Automation, IEEE ICMA 2016
出版社Institute of Electrical and Electronics Engineers Inc.
ページ1137-1142
ページ数6
ISBN(電子版)9781509023943
DOI
出版ステータスPublished - 2016 9 1
外部発表はい
イベント13th IEEE International Conference on Mechatronics and Automation, IEEE ICMA 2016 - Harbin, Heilongjiang, China
継続期間: 2016 8 72016 8 10

出版物シリーズ

名前2016 IEEE International Conference on Mechatronics and Automation, IEEE ICMA 2016

Other

Other13th IEEE International Conference on Mechatronics and Automation, IEEE ICMA 2016
国/地域China
CityHarbin, Heilongjiang
Period16/8/716/8/10

ASJC Scopus subject areas

  • 機械工学
  • 人工知能
  • コンピュータ サイエンスの応用
  • ソフトウェア

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