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Unit selection module and method for Chinese text-to-speech synthesis

  • US 20060095264A1
  • Filed: 07/22/2005
  • Published: 05/04/2006
  • Est. Priority Date: 11/04/2004
  • Status: Active Grant
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1. A Chinese Text-To-Speech (TTS) synthesis system comprising:

  • a word pre-processing module, a unit selection module, a speech generation module, and a corpus;

    characterized in that;

    said unit selection module comprises;

    a probabilistic context free grammar (PCFG) parser, a latent semantic indexing (LSI) module, and a modified variable-length unit selection scheme;

    said PCFG parser parses a Chinese sentence to obtain the CFG of said Chinese sentence as its target unit;

    said LSI module estimates the structural distance between the candidate synthesis units and the target unit in said corpus; and

    through said modified variable-length unit selection scheme, tagged with a dynamic program algorithm, the units are searched to find the best synthesis unit concatenation sequence of said Chinese sentence.

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