2. The device according to claim 1 , wherein the processor further determines that the current emotional state of the audio signal changes to the other emotional state of the plurality of emotional states when the emotional state of one of the plurality of segments is the other emotional state with the confidence score of the emotional state of the one of the plurality of segments being greater than the predetermined threshold.
5. The device according to claim 2 , wherein the processor further determines that the current emotional state of the audio signal changes to the other emotional state of the plurality of emotional states when, for each of the predetermined number of the plurality of segments, the emotional state is not equal to the current emotional state with the confidence score of the emotional state being greater than the predetermined threshold.