Digital assistant providing whispered speech

  • US 10,192,552 B2
  • Filed: 09/15/2016
  • Issued: 01/29/2019
  • Est. Priority Date: 06/10/2016
  • Status: Active Grant
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First Claim
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1. An electronic device, comprising:

  • one or more processors;

    memory; and

    one or more programs stored in memory, the one or more programs including instructions for;

    receiving a speech input from a user;

    determining, based on the speech input, that a whispered speech response is to be provided;

    upon determining that a whispered speech response is to be provided, generating the whispered speech response, wherein generating the whispered speech response comprises;

    generating text based on the speech input;

    performing natural language processing of the text;

    generating an intermediate speech based on a result of the natural language processing;

    obtaining a residual signal based on a linear prediction analysis of the intermediate speech;

    modifying the residual signal; and

    obtaining the whispered speech response based on a linear prediction synthesis of the modified residual signal; and

    providing the whispered speech response to the user.

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