[PDF] cepstrum python

  • What is cepstrum used for?

    The cepstrum concept was first introduced in 1963 by BP Bogert, MJ Healy and JW Tukey.
    It acts as a tool for analyzing periodic structures in frequency spectrums.
    Such effects are related to noticeable echoes or reflections in the signal or the generation of harmonic frequencies.

  • What is an example of a cepstrum?

    For example, if the sampling rate of an audio signal is 44100 Hz and there is a large peak in the cepstrum whose quefrency is 100 samples, the peak indicates the presence of a fundamental frequency that is 44100/100 = 441 Hz.

  • What is the difference between spectrum and cepstrum?

    While a frequency spectrum or FFT reveals the periodicity of a time domain measurement signal, the cepstrum reveals the periodicity of a spectrum.

  • What is the difference between spectrum and cepstrum?

    Cepstrum analysis is a nonlinear signal processing technique with a variety of applications in areas such as speech and image processing.

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