Signals and Telecommunication Journal Anilesh Dey, Purnendu B. Acharjee, Tanushrre Ghosh, Pompy R Gogoi, Pranhari Talukder, D. K. Bhattacharyya 7 1 2018 http://www.dline.info/stj/fulltext/v7n1/stjv7n1_1.pdf Emotion recognition by analysis of speech signal is a recent area of research. ‘n-bit’ rank, for some fixed n, of symbolic dynamics has already been applied in connection with one-dimension signals. However, it is completely a new approach in connection with distinction of emotions through speech signals. The present paper considers four bit rank of symbolic dynamics of speech signals in both anger and normal state. It proves that two emotion states are significantly different from each other.