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Method and system for adjusting the voice prompt of an interactive system based upon the user's state

  • US 7,881,934 B2
  • Filed: 09/12/2003
  • Issued: 02/01/2011
  • Est. Priority Date: 09/12/2003
  • Status: Active Grant
First Claim
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1. A method of adjusting a voice prompt of a system based upon a state of a user of the system, the method comprising:

  • receiving an utterance of the user;

    obtaining utterance parameters from the utterance, the utterance parameters indicating the state of the user;

    determining the state of the user based upon an utterance parameter vector; and

    adjusting the voice prompt by adjusting at least one of a tone of voice of the voice prompt, a content of the voice prompt, a prosody of the voice prompt, and a gender of the voice prompt based upon the determined state of the user, wherein obtaining utterance parameters comprises;

    partitioning the utterance into segments;

    assigning one of a plurality of classifications to each segment, each classification corresponding to at least one of a plurality of states of the user; and

    determining a total number of one of the plurality of classifications divided by a total number of segments of the utterance for each of the plurality of states of the user to create the utterance parameter vector.

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