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Objective measure for estimating mean opinion score of synthesized speech

  • US 7,024,362 B2
  • Filed: 02/11/2002
  • Issued: 04/04/2006
  • Est. Priority Date: 02/11/2002
  • Status: Active Grant
First Claim
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1. A method for estimating naturalness of synthesized speech, wherein naturalness is a subjective quality of synthesized speech, the method comprising:

  • generating a set of synthesized utterances from textual information;

    subjectively rating each of the synthesized utterances;

    calculating a score for each of the synthesized utterances using an objective measure, the objective measure being a function of textual information used to form the utterances;

    ascertaining a relationship between the scores of the objective measure and subjective ratings of the synthesized utterances; and

    using the relationship to estimate naturalness of synthesized speech.

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