发明名称 |
Speech synthesis apparatus having prosody generator with user-set speech-rate- or adjusted phoneme-duration-dependent selective vowel devoicing |
摘要 |
The speech synthesis apparatus according to the present invention includes a text analyzer operable to generate a phonetic and prosodic symbol string from text information of an input text; a word dictionary storing a reading and accent of a word; a voice segment dictionary storing a phoneme that is a basic unit of speech; a prosody generator operable to generate synthesizing parameters including at least a phoneme, a duration of the phoneme and a fundamental frequency for the phonetic and prosodic symbol string, the prosody generator including a vowel devoicing determining means operable to determine whether or not a vowel devoicing process is to be performed and a duration modifying means operable to modify the duration of the phoneme depending on a speech rate set by a user, the vowel devoicing determining means determining that the vowel devoicing process is not performed when the set speech rate is slower than a predetermined rate; and a waveform generator operable to generate a synthesized waveform by making waveform overlap-adding referring to the synthesizing parameters generated by the prosody generator and the voice segment dictionary.
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申请公布号 |
US6470316(B1) |
申请公布日期 |
2002.10.22 |
申请号 |
US20000518275 |
申请日期 |
2000.03.03 |
申请人 |
OKI ELECTRIC INDUSTRY CO., LTD. |
发明人 |
CHIHARA KEIICHI |
分类号 |
G10L13/06;G10L13/02;G10L13/08;(IPC1-7):G10L13/08 |
主分类号 |
G10L13/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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