This paper proposes a robust speech enhancement method combining spectral subtraction and beamforming, which can be used as a preprocessor for speech recognition systems. Spectral subtraction is an effective method to reduce stationary additive noise from a single microphone signal. However, it has a major drawback, in that it introduces musical noise. In this paper, it is demonstrated that the proposed method improves existing spectral subtraction methods and reduces its residual noise using a microphone array.


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    Titel :

    Speech enhancement using microphone array in moving vehicle environment


    Beteiligte:
    Cho, J. (Autor:in) / Krishnamurthy, A. (Autor:in)


    Erscheinungsdatum :

    01.01.2003


    Format / Umfang :

    377350 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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