| 摘要 |
The present invention provides a method and apparatus for training F 0 and pause prediction model, method and apparatus for F 0 and pause prediction, method and apparatus for speech synthesis. Said method for training an F 0 prediction model, comprising: representing F 0 with an orthogonal polynomial; for each parameter of the orthogonal polynomial, generating an initial parameter prediction model with a plurality of attributes related to F 0 prediction and at least part of possible attribute combinations of said plurality of attributes, in which each of said plurality of attributes and said attribute combinations is included as an item; calculating importance of each said item in said parameter prediction model; deleting the item having the lowest importance calculated; re-generating a parameter prediction model with the remaining items; determining whether said re-generated parameter prediction model is an optimal model; and repeating said step of calculating importance and the steps following said step of calculating importance with the newly re-generated parameter prediction model, if said parameter prediction model is determined as not an optimal model; wherein the orthogonal polynomial and all parameter prediction models of the orthogonal polynomial form the F 0 prediction model.
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