Development of zonal beam former and its application to robot audition

Nobuaki Tanaka*, Tetsuji Ogawa, Kenzo Akagiri, Tetsunori Kobayashi

*この研究の対応する著者

研究成果: Conference article査読

3 被引用数 (Scopus)

抄録

We have proposed a zonal beamformer (ZBF), which enhances the sound source located in a zonal space, and applied the ZBF to noise reduction systems for robot audition. A conversational partner of a robot does not always remain stationary with respect to the robot. In order to cope with such a situation, we have proposed a fan-like beamformer (FBF), which enhances the sound source located in a fan-like space in front of the robot under the assumption that the partner is in front of the robot. However, the FBF may degrade the noise reduction performance when directional noise sources are located behind the target source because the FBF widens the space as the distance from the robot increases. The ZBF can better improve the performance of eliminating the directional noise coming from behind the target source than the FBF because the ZBF has a considerably sharper directivity than the FBF.

本文言語English
ページ(範囲)1529-1533
ページ数5
ジャーナルEuropean Signal Processing Conference
出版ステータスPublished - 2010 12 1
イベント18th European Signal Processing Conference, EUSIPCO 2010 - Aalborg, Denmark
継続期間: 2010 8 232010 8 27

ASJC Scopus subject areas

  • 信号処理
  • 電子工学および電気工学

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