Acoustic focusing by microphone array for human interactive mobile robot

Hiroshi Mizoguchi; Yoshiyuki Kato; Kazuyuki Hiraoka; Masaru Tanaka; Takaomi Shigehara; Taketoshi Mishima

doi:10.1117/12.417297

2 March 2001 Acoustic focusing by microphone array for human interactive mobile robot

Hiroshi Mizoguchi, Yoshiyuki Kato, Kazuyuki Hiraoka, Masaru Tanaka, Takaomi Shigehara, Taketoshi Mishima

Proceedings Volume 4195, Mobile Robots XV and Telemanipulator and Telepresence Technologies VII; (2001) https://doi.org/10.1117/12.417297
Event: Intelligent Systems and Smart Manufacturing, 2000, Boston, MA, United States

Abstract

This paper proposes a method for a robot to pick up human voice clearly and remotely. The method utilizes microphones array. By setting gain and delay of each microphone properly, it enables to form "acoustic focus" at the desired location. The proposed method is intended to be used as a speech signal input for human interactive mobile robot. To confirm feasibility of the proposed idea, the authors conduct simulation and simple experiments. The simulation result supports the feasibility. As for the experiment, although the array is so simple that the number of microphones is only three and signal processing of the array is "offline", we can confirm that a sensitivity peak of the array appears at the desired location. Both results show possibility to realize "acoustic focus" at the desired location. Thus these results support feasibility of the proposed idea.

Citation Download Citation

Hiroshi Mizoguchi, Yoshiyuki Kato, Kazuyuki Hiraoka, Masaru Tanaka, Takaomi Shigehara, and Taketoshi Mishima "Acoustic focusing by microphone array for human interactive mobile robot", Proc. SPIE 4195, Mobile Robots XV and Telemanipulator and Telepresence Technologies VII, (2 March 2001); https://doi.org/10.1117/12.417297

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available