发明名称 |
WAVEFORM SYNTHESIS |
摘要 |
A synthesizer is disclosed in which a speech waveform is synthesized by selecting a synthetic starting waveform segment and then generating a sequence of further segments. The further waveform segments are generated based jointly upon the value of the immediately-preceding segment and upon a model of the dynamics of an actual sound similar to that being generated. In particular, a method is disclosed of a voiced speech sound comprising calculating each new output value from the previous output value using data modeling the evolution, over a short time interval, of the voiced speech sound to be synthesized. This sequential generation of waveform segments enables a synthesized sequence of speech waveforms to be generated of any duration. In addition, a low-dimensional state space representation of speech signals are used in which successive pitch pulse cycles are superimposed to estimate the progression of the cyclic speech signal within each cycle. |
申请公布号 |
EP0875059(A1) |
申请公布日期 |
1998.11.04 |
申请号 |
EP19970900309 |
申请日期 |
1997.01.09 |
申请人 |
BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY |
发明人 |
BANBROOK, MICHAEL;MCLAUGHLIN, STEPHEN |
分类号 |
G10L13/04;G10L13/06;(IPC1-7):G10L5/04 |
主分类号 |
G10L13/04 |
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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