Abstract
In order to make synthetic speech rich in its expression, fundamental frequency contours were analyzed for the utterances of several emotional degrees with joy and sadness based on a model for the process of generation. Changes in controlling parameters of the model with regard to degrees of emotion were examined in terms of linguistic factors of the utterances. As a result, the baseline frequency increases as emotional degree increases, especially for sadness utterances. About the phrase commands, the rate of occurrence increases as emotional degree increases at the right branch boundary in the grammatical structure for both joy and sadness, while the rate of occurrence at the left branch boundary for sadness is almost constant for emotional degrees. The change of the amplitude of phrase commands is depended on the kind of position of grammatical structure. About the accent commands, timings of their onsets and offsets are almost constant for emotional degrees. They are depended on the accent types of prosodic words. The magnitude of the accent commands changes as emotional degree increases depending on the positions of prosodic words from the beginning of the utterance.
