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Human-Robot Interface Using System Request Utterance Detection Based on Acoustic Features

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6 Author(s)
Tetsuya Takiguchi ; Organ. of Adv. Sci. & Technol., Kobe Univ., Kobe ; Tomoyuki Yamagata ; Atsushi Sako ; Nobuyuki Miyake
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For a mobile robot to serve people in actual environments, such as a living room or a party room, it must be easy to control because some users might not even be capable of operating a computer keyboard. For nonexpert users, speech recognition is one of the most effective communication tools when it comes to a hands-free (human-robot) interface. This paper describes a new mobile robot with hands-free speech recognition. For a hands- free speech interface, it is important to detect commands for a robot in spontaneous utterances. Our system can understand whether user's utterances are commands for the robot or not, where commands are discriminated from human- human conversations by acoustic features. Then the robot can move according to the user's voice (command). In order to capture the user's voice only, a robust voice detection system with AdaBoost is also described.

Published in:

Multimedia and Ubiquitous Engineering, 2008. MUE 2008. International Conference on

Date of Conference:

24-26 April 2008