Speech enhancement using square microphone array for mobile devices

Shintaro Takada, Tetsuji Ogawa, Kenzo Akagiri, Tetsunori Kobayashi

    研究成果: Conference contribution

    4 引用 (Scopus)

    抜粋

    In this paper, we propose a new type of speech enhancement method that is suitable for mobile devices used in noisy environments. For the sake of achieving high-performance speech recognition and auditory perception in the mobile devices, disturbance noises have to be removed under the requirements of a space-saving microphone arrangement and a low computational cost. The proposed method can reduce both the directional and the diffuse noises under the requirements for the mobile devices by applying the square microphone array and the low-cost processing that consists of multiple null beam-forming, their minimum power channel selection and Wiener filtering. The effectiveness of the proposed method is clarified for speech recognition accuracies and speech qualities under the condition in which both the directional and the diffuse noises exist simultaneously: it reduced 40% of recognition errors and improved PESQ-based MOS value by 0.75 point.

    元の言語English
    ホスト出版物のタイトルICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
    ページ313-316
    ページ数4
    DOI
    出版物ステータスPublished - 2008
    イベント2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP - Las Vegas, NV
    継続期間: 2008 3 312008 4 4

    Other

    Other2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP
    Las Vegas, NV
    期間08/3/3108/4/4

      フィンガープリント

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Signal Processing
    • Acoustics and Ultrasonics

    これを引用

    Takada, S., Ogawa, T., Akagiri, K., & Kobayashi, T. (2008). Speech enhancement using square microphone array for mobile devices. : ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings (pp. 313-316). [4517609] https://doi.org/10.1109/ICASSP.2008.4517609