In the simplest form of LPC coding, voiced excitation consists of a train of impulses which differs a great deal real world cases, where each excitation pulse possesses a certain shape, different an ideal impulse. The shape of the pulse contain

This indeed is the core idea of MELP and is based on practical observations where the prediction-error sequence is a combination of a pulse train with noise. Thus, the MELP model is much more realistic than the LPC model, where the excitation i

University of numerical analysis algorithms, Complete codec LDPC code, Complex modulation coherent pulse train signal.