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[Author] Yi Ren LENG(1hit)

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  • Selective Gammatone Envelope Feature for Robust Sound Event Recognition

    Yi Ren LENG  Huy Dat TRAN  Norihide KITAOKA  Haizhou LI  

     
    PAPER-Audio Processing

      Vol:
    E95-D No:5
      Page(s):
    1229-1237

    Conventional features for Automatic Speech Recognition and Sound Event Recognition such as Mel-Frequency Cepstral Coefficients (MFCCs) have been shown to perform poorly in noisy conditions. We introduce an auditory feature based on the gammatone filterbank, the Selective Gammatone Envelope Feature (SGEF), for Robust Sound Event Recognition where channel selection and the filterbank envelope is used to reduce the effect of noise for specific noise environments. In the experiments with Hidden Markov Model (HMM) recognizers, we shall show that our feature outperforms MFCCs significantly in four different noisy environments at various signal-to-noise ratios.