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Journal of Biomedicine and Biotechnology
Volume 2008, Article ID 768232, 7 pages
Research Article

A Robotic Voice Simulator and the Interactive Training for Hearing-Impaired People

Department of Intelligent Mechanical Systems Engineering, Faculty of Engineering, Kagawa University, Japan

Received 31 August 2007; Accepted 23 January 2008

Academic Editor: Daniel Howard

Copyright © 2008 Hideyuki Sawada et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


A talking and singing robot which adaptively learns the vocalization skill by means of an auditory feedback learning algorithm is being developed. The robot consists of motor-controlled vocal organs such as vocal cords, a vocal tract and a nasal cavity to generate a natural voice imitating a human vocalization. In this study, the robot is applied to the training system of speech articulation for the hearing-impaired, because the robot is able to reproduce their vocalization and to teach them how it is to be improved to generate clear speech. The paper briefly introduces the mechanical construction of the robot and how it autonomously acquires the vocalization skill in the auditory feedback learning by listening to human speech. Then the training system is described, together with the evaluation of the speech training by auditory impaired people.