Investigation of prosodie FO layers in hierarchical FO modeling for HMM-based speech synthesis
- Resource Type
- Conference
- Authors
- Lei, Ming; Wu, Yi-Jian; Ling, Zhen-Hua; Dai, Li-Rong
- Source
- IEEE 10th INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING PROCEEDINGS Signal Processing (ICSP), 2010 IEEE 10th International Conference on. :613-616 Oct, 2010
- Subject
- Signal Processing and Analysis
Components, Circuits, Devices and Systems
Communication, Networking and Broadcast Technologies
Computing and Processing
Hidden Markov models
Training
Additives
Context modeling
Speech synthesis
Context
Data models
speech synthesis
hidden Markov model
hierarchical FO modeling
minimum generation error training
- Language
- ISSN
- 2164-5221
2164-523X
To address the overall-micro modeling issue of current prosody model in HMM-based speech synthesis, a hierarchical FO modeling method has been proposed, in which different kinds of pittch patterns are characterized by different prosodie layers and an minimum generation error (MGE) training framework is used to simultaneous optimize FO models of all layers. This paper investigate the importance of prosodie layers and relationship between prosodie characteristics by this hierarchical FO modeling method. Cluster number of each layer is modified to balance the accuracy and robustness of each layer, and thus other layers would be influenced due to the additive structure. The importance and relationship are reflected by different systems with different cluster number ratios. The experimental results and conclusion are valuable and helpful to design a hierarchical FO modeling system.