| Project/Area Number |
25540065
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Perceptual information processing
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
KOBAYASHI Takao 東京工業大学, 総合理工学研究科(研究院), 教授 (70153616)
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| Co-Investigator(Kenkyū-buntansha) |
NOSE Takashi 東北大学, 大学院工学研究科, 講師 (90550591)
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| Research Collaborator |
KORIYAMA Tomoki 東京工業大学, 大学院総合理工学研究科, 助教 (50749124)
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| Project Period (FY) |
2013-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | テキスト音声合成 / 統計的パラメトリック音声合成 / HMM音声合成 / ガウス過程回帰 / カーネル関数 / フレームコンテキスト / 統計的音声合成 / 動的特徴量 / 系列内変動 |
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| Outline of Final Research Achievements |
The purpose of the research is to develop a framework using non-parametric modeling for synthesizing more natural-sounding speech than the conventional HMM-based statistical parametric speech synthesis framework. The proposed modeling approach is based on Gaussian process regression (GPR) and GPR model is designed for directly predicting frame-level acoustic features from corresponding input linguistic information. We have proposed kernel functions for GPR-based speech synthesis and examined several techniques for computational cost reduction, hyper-parameter optimization, and prosody modeling using Gaussian process classification and GPR.
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