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- W2576799197 abstract "This paper proposes a system to convert neutral speech to emotional with controlled intensity of emotions. Most of previous researches considering synthesis of emotional voices used statistical or concatenative methods that can synthesize emotions in categorical emotional states such as joy, angry, sad, etc. While humans sometimes enhance or relieve emotional states and intensity during daily life, synthesized emotional speech in categories is not enough to describe these phenomena precisely. A dimensional approach which can represent emotion as a point in a dimensional space can express emotions with continuous intensity. Employing the dimensional approach to describe emotion, we conduct a three-layered model to estimate displacement of the acoustic features of the target emotional speech from that of source (neutral) speech and propose a rule-based conversion method to modify acoustic features of source (neutral) speech to synthesize the target emotional speech. To convert the source speech freely and easily, we introduce two methods to parameterize dynamic features in prosody, that is, Fujisaki model for f0 contour and target prediction model for power envelope. Evaluation results show that subjects can perceive intended emotion with satisfactory order of emotional intensity and naturalness. This fact means that this system not only has the ability to synthesize emotional speech in category but also can control the order of emotional intensity in dimensional space even in the same emotion category." @default.
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- W2576799197 date "2016-12-01" @default.
- W2576799197 modified "2023-09-23" @default.
- W2576799197 title "Voice conversion to emotional speech based on three-layered model in dimensional approach and parameterization of dynamic features in prosody" @default.
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- W2576799197 doi "https://doi.org/10.1109/apsipa.2016.7820690" @default.
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