2. The method of claim 1 , wherein generating a speech model based on the text string and the set of user spoken utterances further comprises obtaining a Hidden Markov Model of the text string.
2. The method of claim 1 , wherein generating a speech model based on the text string and the set of user spoken utterances further comprises obtaining a Hidden Markov Model of the text string. 3. The method of claim 2 , wherein obtaining the Hidden Markov Model of the text string includes training a set of phoneme Hidden Markov Models with speech data.