Properties of LPC estimates on short speech segments

Linear predictive analysis/synthesis methods offer an efficient means of low bit rate encoding of speech signals. This method involves the time segmentation of the speech into regions where the spectrum is approximately stationary. The analysis/ synthesis technique is discussed as well as four methods of determining linear predictive approximations A comparison of these methods on a synthetic speech-like signal and on real speech is presented. The covariance lattice linear prediction method is shown to have some advantages over the other methods for segmenting speech into regions where the spectrum is approximately stationary.