17. The method according to claim 14 , further comprising: selecting an additional segment of speech from the subject utterance of speech; measuring one or more additional acoustic characteristics of the additional segment of speech, wherein each one or more additional acoustic characteristic of the additional segment of speech corresponds to a corresponding one or more baseline acoustic characteristic; comparing each one or more additional acoustic characteristic of the additional segment of speech to the corresponding one or more baseline acoustic characteristic; and determining an additional emotion state of the speaker based on the comparison.
18. The method according to claim 17 , wherein the segment of speech from the subject utterance of speech and the additional segment of speech from the subject utterance of speech are of different lengths.