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Techniques to create a custom voice font

  • US 8,332,225 B2
  • Filed: 06/04/2009
  • Issued: 12/11/2012
  • Est. Priority Date: 06/04/2009
  • Status: Active Grant
First Claim
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1. A computer-implemented method, comprising:

  • receiving voice audio data and a corresponding text script from a client at a server;

    processing the voice audio data to produce prosody labels at the server by producing of linguistic prosody labels and pronunciation prosody labels from the text script in a tagger module, and a xml-based rich script comprising of;

    pronunciation, part of speech, and a prosody event for each word in the text script;

    automatically verifying the voice audio data using the text script at the server by determining a degree of matching between the voice audio data and a corresponding pronunciation in the rich script, ordering sentences in the text script according to the degree of matching, and retaining a sentence having a degree of matching higher than a threshold;

    training a custom voice font from the verified voice audio data and rich script at the server where prosody and acoustic models are generated based on the training; and

    generating custom voice font data usable by a text-to-speech engine at the server based on the training.

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