1. A method for processing a received set of speech data, wherein the received set of speech data comprises an utterance, the method comprising: receiving a set of speech data; executing a process to calculate a plurality of probabilities based on the received set of speech data, wherein each of the plurality of probabilities indicates a statistical likelihood that the set of speech data comprises one of a plurality of candidate utterances; determining a plurality of difference values, each of the plurality of difference values comprising a difference between two of the plurality of probabilities; and comparing the plurality of difference values to determine at least one disparity; wherein the determining step further comprises: calculating a first difference between a first probability and a second probability; calculating a second difference between a third probability and a fourth probability; and comparing the first difference to the second difference to determine the at least one disparity; wherein the plurality of probabilities comprises the first probability, the second probability, the third probability, and the fourth probability; and wherein the plurality of difference values comprises the first difference and the second difference.