SPEECH EDITING/SYNTHESIZING DEVICE AND SPEECH EDITING/SYNTHESIZING METHOD

摘要

A TTS system using connection synthesis synthesizes a speech by connecting some speech fragments.  Connection speech synthesis has been considered as a promising approach to realization of a practical mixed language TTS system.  However, the prosody prediction made by considering the entire text and the discontinuity between synthesized speech segments of two languages adversely influence the synthesized speech quality.  The current art has not been able to solve such a problem.  To solve the problem, a method for mixed language text speech synthesis is provided.  The method includes a procedure of detecting all units of the secondary language by analyzing the language structure of mixed language text of at least two languages, a procedure of replacing all the secondary language units with units of the primary language, a procedure of replacing the part except each unit of the secondary language with the secondary language, and a procedure of synthesizing a speech on the basis of the obtained texts of the primary and secondary languages.