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Systems and methods for text normalization for text to speech synthesis

  • US 8,355,919 B2
  • Filed: 09/29/2008
  • Issued: 01/15/2013
  • Est. Priority Date: 09/29/2008
  • Status: Active Grant
First Claim
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1. A method for normalizing a text string for text to speech synthesis, the method comprising:

  • at a system having one or more processors;

    identifying a character sequence in the text string, the character sequence including at least a first non-alphabetical character adjacent one or more alphabetical characters;

    identifying two or more alternative alphabetical characters or character strings that correspond to the first non-alphabetical character adjacent the one or more alphabetical characters;

    creating a plurality of test strings, each test string being a version of the text string that is modified to include a different one of the identified two or more alternative alphabetical characters or character strings instead of the first non-alphabetical character adjacent the one or more alphabetical characters; and

    selecting a first test string from the plurality of test strings to replace the text string in speech synthesis based on respective probabilities of occurrence of the plurality of test strings in a source language of the text string.

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