Acoustic model generation method, speech synthesis method, acoustic model generation device, speech synthesis device, program

摘要

To provide an acoustic model generation method for generating an acoustic model which realizes high quality voice synthesis even for domains where only a small amount of learning data can be obtained.SOLUTION: The acoustic model generation method includes a first step in which a context is added to the context data of a domain not having the largest total number of frames in a plural domain context DB to generate a plural domain homogenization context DB and pseudo sound data is generated for each context data of the plural domain homogenization context DB to generate a plural domain homogenized pseudo voice DB, a second step of integrating a plural domain voice DB and the plural domain homogenized pseudo voice DB to generate a plural domain homogeneous voice DB and integrating the plural domain context DB and the plural domain homogenization context DB to generate a plural domain homogenization context DB, and a third step of learning an acoustic model using the plural domain homogeneous voice DB and the plural domain homogeneous context DB as learning data.SELECTED DRAWING: Figure 3