International Workshop on Hands-Free Speech Communication (HSC2001) April 9-11, 2001 Kyoto, Japan

A High Directional Sound for Hands-Free System by Focusing Parametric Array Sound

Tatsuya Nakazawa, Yoshimichi Yonezawa, Kazunori Itoh and Masami Hashimoto

Faculty of Engineering, Shinshu University, Wakasato, Nagano, Japan

A high directional virtual speaker using a principle of parametric array and focusing technique was developed. The source seems as if it were in the air and can be virtually set close to a person's ear or in front of a person's face because it does not really exist. These feature can be applied to a hands-free communication tool.

Full Paper

Bibliographic reference.  Nakazawa, Tatsuya / Yonezawa, Yoshimichi / Itoh, Kazunori / Hashimoto, Masami (2001): "A high directional sound for hands-free system by focusing parametric array sound", In HSC2001, 83-86.