New anthropomorphic talking robot having a three-dimensional articulation mechanism and improved pitch range

Kotaro Fukui, Yuma Ishikawa, Takashi Sawa, Eiji Shintaku, Masaaki Honda, Atsuo Takanishi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Citations (Scopus)

Abstract

We have developed a new three-dimensional talking robot Waseda Talker No. 6 (WT-6), which generates speech sounds by mechanically simulating articulatory motions as well as aero-acoustic phenomena in the vocal tract. WT-6 has 17-DOF vocal mechanism. It has three-dimensional lips, tongue, jaw and velum which form the 3D vocal tract structure. It also has an independent jaw opening/closing mechanism, which controls the relative tongue position in the vocal tract as well as the oral opening. The previous robot in the series had a 2D tongue and was not able to realize precise closure to produce human-like consonants such as /s/ or /r/. The new tongue, which can be controlled to form 3D shapes, is able to produce more realistic vocal tract shapes. The vocal cord model was also improved by adding a new pitch control mechanism that pushes from the side of the vocal cords. The pitch range is broader than that of the previous robot; it is sufficiently broad so as to be able to reproduce normal human speech. Preliminary experimental results showed improved synthesized speech quality for the vowels /a/, /u/ and /o/.

Original languageEnglish
Title of host publicationProceedings - IEEE International Conference on Robotics and Automation
Pages2922-2927
Number of pages6
DOIs
Publication statusPublished - 2007
Event2007 IEEE International Conference on Robotics and Automation, ICRA'07 - Rome
Duration: 2007 Apr 102007 Apr 14

Other

Other2007 IEEE International Conference on Robotics and Automation, ICRA'07
CityRome
Period07/4/1007/4/14

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ASJC Scopus subject areas

  • Software
  • Control and Systems Engineering

Cite this

Fukui, K., Ishikawa, Y., Sawa, T., Shintaku, E., Honda, M., & Takanishi, A. (2007). New anthropomorphic talking robot having a three-dimensional articulation mechanism and improved pitch range. In Proceedings - IEEE International Conference on Robotics and Automation (pp. 2922-2927). [4209533] https://doi.org/10.1109/ROBOT.2007.363915