Ears of the robot: Three simultaneous speech segregation and recognition using robot-mounted microphones

    研究成果: Article

    3 引用 (Scopus)

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    A new type of sound source segregation method using robot-mounted microphones, which are free from strict head related transfer function (HRTF) estimation, has been proposed and successfully applied to three simultaneous speech recognition systems. The proposed segregation method is executed with sound intensity differences that are due to the particular arrangement of the four directivity microphones and the existence of a robot head acting as a sound barrier. The proposed method consists of three-layered signal processing: two-line SAFIA (binary masking based on the narrow band sound intensity comparison), two-line spectral subtraction and their integration. We performed 20 K vocabulary continuous speech recognition test in the presence of three speakers' simultaneous talk, and achieved more than 70% word error reduction compared with the case without any segregation processing.

    元の言語English
    ページ(範囲)1465-1468
    ページ数4
    ジャーナルIEICE Transactions on Information and Systems
    E90-D
    発行部数9
    DOI
    出版物ステータスPublished - 2007 9

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    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Software
    • Artificial Intelligence
    • Hardware and Architecture
    • Computer Vision and Pattern Recognition

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