Cepstral and Mel-Cepstral Analysis of Speech

  • KOBAYASHI Takao
    Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology

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Other Title
  • 音声のケプストラム分析, メルケプストラム分析

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Description

This paper reviews several cepstral analysis techniques for speech signals. These techniques are classified in three classes: the original cepstral method and homomorphic processing techniques; model-based log spectral estimation techniques; and other techniques. First, fundamentals of the cepstral analysis technique is described. Then several model-based techniques which provide unbiased estimators of log spectrum are discussed. They include generalized cepstral analysis and mel-cepstral analysis techniques. Realization of speech synthesis filters for the generalized cepstral and mel-cepstral models are also shown. Finally, LPC derived cepstrum and mel-frequency cepstrum coefficients(MFCC) are briefly explained. Some illustrative analysis examples are shown in the paper.

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Details 詳細情報について

  • CRID
    1573668927130532736
  • NII Article ID
    110003296872
  • NII Book ID
    AN10013221
  • Text Lang
    ja
  • Data Source
    • CiNii Articles

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