Method and device for generating an adapted reference for automatic speech recognition
First Claim
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1. A method for generating adapted references for automatic speech recognition, comprising:
- performing recognition based on a spoken utterance and obtaining a recognition result which corresponds to a currently valid reference;
adapting the currently valid reference in accordance with the spoken utterance to generate an adapted reference; and
assessing the adapted reference and deciding if the adapted reference is to be used for further recognition.
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Abstract
The invention relates to a method for generating an adapted reference for automatic speech recognition. In a first step, recognition is performed based on a spoken utterance and a recognition result which corresponds to a currently valid reference is obtained. In a second step, the currently valid reference is adapted in accordance with the utterance in order to create an adapted reference. In a third step, the adapted reference is assessed and it is decided if the adapted reference is used for further recognition.
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Citations
19 Claims
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1. A method for generating adapted references for automatic speech recognition, comprising:
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performing recognition based on a spoken utterance and obtaining a recognition result which corresponds to a currently valid reference;
adapting the currently valid reference in accordance with the spoken utterance to generate an adapted reference; and
assessing the adapted reference and deciding if the adapted reference is to be used for further recognition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for generating adapted references to be used for automatic speech recognition, comprising:
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receiving a spoken utterance and matching a pattern of the spoken utterance with corresponding patterns of a plurality of currently valid references to obtain the currently valid reference which corresponds to the spoken utterance;
adapting the pattern of the currently valid reference corresponding to the spoken utterance by shifting the pattern of the currently valid reference towards the pattern of the spoken utterance to generate an adapted reference;
assessing the adapted reference by determining the distance between the adapted reference and at least one of the currently valid references; and
deciding on the basis of the one or more distances if the adapted reference is to be used for recognizing a subsequent spoken utterance. - View Dependent Claims (13, 15, 16, 17, 18)
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12. A computer program product with program code means for performing the steps of:
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performing recognition based on a spoken utterance and obtaining a recognition result which corresponds to a currently valid reference;
adapting the currently valid reference in accordance with the spoken utterance to generate an adapted reference; and
assessing the adapted reference and deciding if the adapted reference is to be used for further recognition when the product is executed in a computing unit.
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14. A device for generating adapted references for automatic speech recognition, comprising:
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a speech recognizer for performing recognition based on a spoken utterance and for obtaining a recognition result which corresponds to a currently valid reference;
an adaption unit which adapts the currently valid reference in accordance with the spoken utterance to generate an adapted reference; and
an assessing unit which assesses the adapted reference and which decides if the adapted reference is used for further recognition.
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19. A device for generating adapted references for automatic speech recognition, comprising:
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a speech recognizer which matches a pattern of a spoken utterance with patterns of a plurality of currently valid references to identify a currently valid reference which corresponds to the spoken utterance;
an adaption unit which shifts the pattern of the currently valid reference which corresponds to the spoken utterance towards the pattern of the spoken utterance to generate an adapted reference; and
an assessing unit which assesses the adapted reference and which decides if the adapted reference is to be used by the speech recognizer for recognizing a subsequent spoken utterance.
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Specification