Linear-prediction cepstra

Figure 12.13b shows the spectra predicted from linear prediction filters for a range of orders. It is quite clear that as the order increases, so does the detail in the spectrum. It is interesting to compare this to Figure 12.12 which shows the same investigation but with cepstra. It is clear that the cepstral spectra are much more heavily influenced by the harmonics as the order of analysis increases. 

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