Development of zonal beam former and its application to robot audition

Nobuaki Tanaka, Tetsuji Ogawa, Kenzo Akagiri, Tetsunori Kobayashi

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    2 Citations (Scopus)

    Abstract

    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.

    Original languageEnglish
    Title of host publicationEuropean Signal Processing Conference
    Pages1529-1533
    Number of pages5
    Publication statusPublished - 2010
    Event18th European Signal Processing Conference, EUSIPCO 2010 - Aalborg, Denmark
    Duration: 2010 Aug 232010 Aug 27

    Other

    Other18th European Signal Processing Conference, EUSIPCO 2010
    CountryDenmark
    CityAalborg
    Period10/8/2310/8/27

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    ASJC Scopus subject areas

    • Signal Processing
    • Electrical and Electronic Engineering

    Cite this

    Tanaka, N., Ogawa, T., Akagiri, K., & Kobayashi, T. (2010). Development of zonal beam former and its application to robot audition. In European Signal Processing Conference (pp. 1529-1533)