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Client/server architecture for text-to-speech synthesis

  • US 6,810,379 B1
  • Filed: 04/24/2001
  • Issued: 10/26/2004
  • Est. Priority Date: 04/24/2000
  • Status: Expired due to Fees
First Claim
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1. In a computer system comprising a server machine and a client machine, a text-to-speech synthesis method comprising:

  • describing a finite number of possible acoustic units;

    optimizing a compression method selected in dependence of said finite number of possible acoustic units, wherein said optimizing step further comprises selecting parameters of said compression method utilizing a directed optimized search to minimize the amount of data transmitted between said server machine and said client machine;

    compressing said finite number of possible acoustic units via said optimized compression method;

    storing said finite number of possible acoustic units as compressed acoustic units in an acoustic unit database accessible to said server machine;

    in said server machine, obtaining a normalized text and generating prosody data thereof;

    selecting from said acoustic unit database compressed acoustic units that correspond to said normalized text;

    transmitting said prosody data and said selected compressed acoustic units from said server machine to said client machine; and

    in said client machine, decompressing said transmitted acoustic units and concatenating said decompressed acoustic units in accordance with said prosody data.

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