1. A speech coding system, comprising: an analyzer for receiving a digital speech signal and generating therefrom a sequence of frames, each frame having speech parameters, said parameters of each frame including an energy value; means coupled to said analyzer for normalizing the energy value of each said speech frame with respect to energy values of subsequently generated frames of the sequence; and means coupled to said normalizing means for loading said parameters for each said speech frame of the sequence, including said normalized energy parameter of each said speech frame, into a data channel.