1. An apparatus in one of a Text Dependent (TD) Hidden Markov Model (HMM) speaker recognition system and a Text Constrained (TC) HMM speaker recognition system, comprising: a Gaussian Mixture Model (GMM) generator for creating a GMM by pooling Gaussians from a plurality of HMM states; and a Gaussian weight normalizer for normalizing Gaussian weights with respect to the plurality of HMM states to provide a Text Independent (TI) speaker recognition mode in the one of the TD HMM speaker recognition system and the TC HMM speaker recognition system.