ScholarGate
Assistent
Process / pipelineSignal processing, Spectral analysis

Cepstral Analyse

Cepstral analyse er en spektralanalyse-teknik, der dekomponerer signaler i uafhængige komponenter ved at invertere log-magnitudspektret. Cepstral analyse, pioneret af Bogert, Healy og Tukey i 1963, afslører periodisk struktur i spektre (grundtone, ekkomønstre) og adskiller kildeexcitation fra filterrespons. Mel-frekvens cepstrale koefficienter (MFCC'er) udledt fra cepstral analyse er de mest anvendte features i automatisk talegenkendelse, talerverifikation og lydeanalyse.

Åbn i MethodMindSnartVideoSnartDownload slides

Læs hele metoden

Kun for medlemmer

Log ind med en gratis konto for at læse dette afsnit.

Log ind

Method map

The neighbourhood of related methods — select a node to explore.

Kilder

  1. Bogert, B. P., Healy, M. J., & Tukey, J. W. (1963). The quefrency alanysis of time series for echoes: cepstrum, pseudo-autocovariance, cross-cepstrum, and saphe cracking. In Time Series Analysis Research Papers (pp. 209–243). Wiley. link
  2. Davis, S., & Mermelstein, P. (1980). Comparison of parametric representations for monosyllabic word recognition in continuously spoken sentences. IEEE Transactions on Acoustics, Speech, and Signal Processing, 28(4), 357–366. DOI: 10.1109/TASSP.1980.1163420
  3. Rabiner, L. R., & Juang, B. H. (1993). Fundamentals of Speech Recognition. Prentice-Hall. ISBN: 978-0130156099

Sådan citerer du denne side

ScholarGate. (2026, June 3). Cepstral Analysis for Spectral Decomposition and Pitch Detection. ScholarGate. https://scholargate.app/da/acoustics/cepstral-analysis

Which method?

Set this method beside its closest kin and read them side by side — the library lays the books on the table; the choice is yours.

Compare side by side

Refereret af

ScholarGateCepstral Analysis (Cepstral Analysis for Spectral Decomposition and Pitch Detection). Hentet 2026-06-15 fra https://scholargate.app/da/acoustics/cepstral-analysis · Datasæt: https://doi.org/10.5281/zenodo.20539026