A new rule-based method of automatic phonetic notation on polyphones

In this paper, a new rule-based method of automatic phonetic notation on the 220 polyphones whose appearing frequency exceeds 99% is proposed. Firstly, all the polyphones in a sentence are classified beforehand. Secondly, rules are extracted based on eight features. Lastly, automatic phonetic notation is applied according to the rules. The paper puts forward a new concept of prosodic functional part of speech in order to improve the numerous and complicated grammatical information. The examples and results of this method are shown at the end of this paper. Compared with other approaches dealt with polyphones, the results show that this new method improves the accuracy of phonetic notation on polyphones.