Speech Recognition Using Channel Verification
First Claim
Patent Images
1. A method comprising:
- computing a plurality of scores for an input signal, the plurality of scores indicative of a degree to which the input signal corresponds to at least one state of a speech recognition model;
computing an average signal based on the speech recognition model and the plurality of scores;
computing, via at least one processor device, a difference value representative of a difference between the input signal and the average signal; and
processing, via the at least one processor device, the input signal in accordance with the difference value.
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Abstract
A method for automatic speech recognition includes determining for an input signal a plurality scores representative of certainties that the input signal is associated with corresponding states of a speech recognition model, using the speech recognition model and the determined scores to compute an average signal, computing a difference value representative of a difference between the input signal and the average signal, and processing the input signal in accordance with the difference value.
100 Citations
24 Claims
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1. A method comprising:
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computing a plurality of scores for an input signal, the plurality of scores indicative of a degree to which the input signal corresponds to at least one state of a speech recognition model; computing an average signal based on the speech recognition model and the plurality of scores; computing, via at least one processor device, a difference value representative of a difference between the input signal and the average signal; and processing, via the at least one processor device, the input signal in accordance with the difference value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A non-transitory machine readable storage medium storing computer instructions that, when executed, cause a processor-based machine to:
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determine for an input signal a plurality of scores representative of certainties that the input signal is associated with corresponding states of a speech recognition model; use the speech recognition model and the determined scores to compute an average signal; compute a difference value representative of a difference between the input signal and the average signal; and process the input signal in accordance with the difference value. - View Dependent Claims (15, 16, 17, 18, 19)
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20. A method comprising:
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segmenting an input signal into multiple frames; computing a set of coefficients for a given frame of the multiple frames, the set of coefficients representing a cepstral vector; normalizing the set of coefficients associated with the given frame; computing an average signal for the given frame; computing, via at least one processor device, a difference value representative of a difference between the input signal and the average signal; and processing, via the at least one processor device, the input signal in accordance with the difference value. - View Dependent Claims (21, 22, 23, 24)
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Specification