Nuance Communications, Inc.

Speechworks International, Inc.

Jerry K Carter

William F Ganong, Iii

David Alun James

Kevin R Farrell

Michael Stuart Phillips

Matthew T Marx

Mark Arthur Holthouse

Brett D Phaneuf

Jose L Elizondo-Cecenas

Stephen D Seabury

One aspect includes determining validity of an identity asserted by a speaker using a voice print associated with a user whose identity the speaker is asserting, the voice print obtained from characteristic features of at least one first voice signal obtained from the user uttering at least one enrollment utterance including at least one enrollment word by obtaining a second voice signal of the speaker uttering at least one challenge utterance that includes at least one word not in the at least one enrollment utterance, obtaining at least one characteristic feature from the second voice signal, comparing the at least one characteristic feature with at least a portion of the voice print to determine a similarity between the at least one characteristic feature and the at least a portion of the voice print, and determining whether the speaker is the user based, at least in part, on the similarity.

Speaker verification methods and apparatus

In one aspect, a method for determining a validity of an identity asserted by a speaker using a voice print is provided. The method comprises acts of performing a first verification stage comprising comparing a first voice signal from the speaker uttering at least one first challenge utterance with at least a portion of the voice print and performing a second verification stage if it is concluded in the first verification stage that the first voice signal was obtained from an utterance by the user. The second verification stage comprises adapting at least one parameter of the voice print based, at least in part, on the first voice signal to obtain an adapted voice print, and comparing a second voice signal from the speaker uttering at least one second challenge utterance with at least a portion of the adapted voice print.

In one aspect, a method for determining validity of an identity asserted by a speaker using a voice print associated with a user whose identity the speaker is asserting, the voice print obtained from characteristic features of at least one first voice signal obtained from the user uttering at least one enrollment utterance including at least one enrollment word is provided. The method comprises acts of obtaining a second voice signal of the speaker uttering at least one challenge utterance, wherein the at least one challenge utterance includes at least one word that was not in the at least one enrollment utterance, obtaining at least one characteristic feature from the second voice signal, comparing the at least one characteristic feature with at least a portion of the voice print to determine a similarity between the at least one characteristic feature and the at least a portion of the voice print, and determining whether the speaker is the user based, at least in part, on the similarity between the at least one characteristic feature and the at least a portion of the voice print.

Dialogue modules are provided, with each dialogue module includes computer readable instructions for accomplishing a predefined interactive dialogue task in an interactive speech application. In response to user input, a subset of the plurality of dialogue modules are selected to accomplish their respective interactive dialogue tasks in the interactive speech application and are interconnected in an order defining the call flow of the application, and the application is generated. A graphical user interface represents the stored plurality of dialogue modules as icons in a graphical display in which icons for the subset of dialogue modules are selected in the graphical display in response to user input, the icons for the subset of dialogue modules are graphically interconnected into a graphical representation of the call flow of the interactive speech application, and the interactive speech application is generated based upon the graphical representation. Using the graphical display, the method further includes associating configuration parameters with specific dialogue modules. Each configuration parameter causes a change in operation of the dialogue module when the interactive speech program executes. A window is displayed for setting the value of the configuration parameter in response to user input, when an icon for a dialogue module having an associated configuration parameter is selected.

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Somerville, MA, United States of America

Jerry K Carter