Cepstral analysis of speech signals

Abstract

Cepstral analysis is a technique for the analysis of signals that have been combined together through convolution. The technique can be considered to form part of the more generalised field of Homomorphic systems, particularly homomorphic deconvolution. Such techniques can be used to analyse speech signals since these can be regarded to be the convolution of two basic signals The aim of the project is to extract useful parameters such as smoothed spectrum and pitch period that enable speech segments to be characterised. Moreover, it serves as an introduction to these processing techniques.