7. The system of claim 6 , wherein the speech segmentation refinement module is further configured to segment the speech within the lexical segment boundaries in thirds, determine the maximum of the kurtosis in a middle third of the speech, and segment the speech into the segmented speech at the maximum of the kurtosis in the middle third of the speech.
7. The system of claim 6 , wherein the speech segmentation refinement module is further configured to segment the speech within the lexical segment boundaries in thirds, determine the maximum of the kurtosis in a middle third of the speech, and segment the speech into the segmented speech at the maximum of the kurtosis in the middle third of the speech. 8. The system of claim 7 , wherein the speech segmentation refinement module is further configured to recursively segment the segmented speech while time durations of the segments of the segmented speech are greater than a threshold.