| Presentation | 2012-11-08 Modeling of Local Variance of Spectral Features and Its Application to Parameter Generation in HMM-based Speech Synthesis Takashi NOSE, Vataya CHUNWIJITRA, Takao KOBAYASHI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we describe a technique for modeling local variance (LV) of speech features and propose a novel parameter generation algorithm using the LV model for HMM-based speech synthesis. In the proposed technique, We define the LV as a feature that represents the local variation around each frame of the spectral features and model them using context-dependent phone HMMs. To appropriately model the dynamic characteristics of LVs, we take into account the dynamic features of LVs as well as the static one. In the parameter generation process, a spectral parameter sequence is estimated so as to maximize a target function where conventional HMMs and LV models are combined. By using the LV models, the proposed technique can impose a more precise variance restriction in the parameter generation than the conventional technique where the global variance (GV) model is used. Through objective and subjective evaluations, we examine the effectiveness of the proposed technique. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | HMM-based speech synthesis / parameter generation / global variance (GV) / local variance (LV) |
| Paper # | SP2012-79 |
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| Conference Information | |
| Committee | SP |
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| Conference Date | 2012/11/1(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Speech (SP) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Modeling of Local Variance of Spectral Features and Its Application to Parameter Generation in HMM-based Speech Synthesis |
| Sub Title (in English) | |
| Keyword(1) | HMM-based speech synthesis |
| Keyword(2) | parameter generation |
| Keyword(3) | global variance (GV) |
| Keyword(4) | local variance (LV) |
| 1st Author's Name | Takashi NOSE |
| 1st Author's Affiliation | Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology() |
| 2nd Author's Name | Vataya CHUNWIJITRA |
| 2nd Author's Affiliation | Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology |
| 3rd Author's Name | Takao KOBAYASHI |
| 3rd Author's Affiliation | Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology |
| Date | 2012-11-08 |
| Paper # | SP2012-79 |
| Volume (vol) | vol.112 |
| Number (no) | 281 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |