SOME STATISTICAL PATTERNS OF CHINESE TONE FOR DISYLLABLE AND ITS APPLICATION ON SYNTHESIS OF SPEECH BY RULE

Although the pitch is different in absolute value the pitch contour corresponding to a particularChinese tone should have a similar pattern which is a distinctive feature in speech perception.Thisis an important feature of Chinese language itself. A lot of work on the pitch pattern of Chinese tones has been done,but most of them were onlyqualitative or oversimplified.It is somewhat difficult to apply those results directly to design ofspeech synthesis by rule.This paper has given 15 new statistical results of tone patterns of Chinesedisyllable and each pattern can be formulated simply by a normalized function P(t)in time domainwhich is directly proportional to T_0_(max) and inversely proportional to T_0(t),where T_0_(max) is thereciprocal of the lowest fundamental frequency in the syllable and T_0(t)the pitch period at time t. It has been shown that there are some characteristics in tone pattern of Chinese disyllable: (l) At the beginning and the end of every tone pattern there is always a transient proc