1. A method of enhancing speech recognition in noisy environments, said method comprising the steps of: providing at least one initial Compound Gaussian Mixture model; applying an adaptation algorithm to at least one item associated with speech enrollment data and to the at least one initial Compound Gaussian Mixture model to yield an intermediate output; and mathematically combining the at least one initial Compound Gaussian Mixture model with the intermediate output to yield an adapted Compound Gaussian Mixture model.