METHOD AND APPARATUS FOR TRAINING A TEXT INDEPENDENT SPEAKER RECOGNITION SYSTEM USING SPEECH DATA WITH TEXT LABELS
First Claim
1. An apparatus in one of a Text Dependent (TD) Hidden Markov Model (HMM) speaker recognition system and a Text Constrained (TC) HMM speaker recognition system, comprising:
- a Gaussian Mixture Model (GMM) generator for creating a GMM by pooling Gaussians from a plurality of HMM states; and
a Gaussian weight normalizer for normalizing Gaussian weights with respect to the plurality of HMM states to provide a Text Independent (TI) speaker recognition mode in the one of the TD HMM speaker recognition system and the TC HMM speaker recognition system.
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Abstract
There is provided an apparatus for providing a Text Independent (TI) speaker recognition mode in a Text Dependent (TD) Hidden Markov Model (HMM) speaker recognition system and/or a Text Constrained (TC) HMM speaker recognition system. The apparatus includes a Gaussian Mixture Model (GMM) generator and a Gaussian weight normalizer. The GMM generator is for creating a GMM by pooling Gaussians from a plurality of HMM states. The Gaussian weight normalizer is for normalizing Gaussian weights with respect to the plurality of HMM states.
20 Citations
14 Claims
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1. An apparatus in one of a Text Dependent (TD) Hidden Markov Model (HMM) speaker recognition system and a Text Constrained (TC) HMM speaker recognition system, comprising:
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a Gaussian Mixture Model (GMM) generator for creating a GMM by pooling Gaussians from a plurality of HMM states; and a Gaussian weight normalizer for normalizing Gaussian weights with respect to the plurality of HMM states to provide a Text Independent (TI) speaker recognition mode in the one of the TD HMM speaker recognition system and the TC HMM speaker recognition system. - View Dependent Claims (2, 3, 4)
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5. An apparatus in a Text Independent (TI) Gaussian Mixture Model (GMM) speaker recognition system, comprising:
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a Hidden Markov Model (HMM) generator for creating an HMM by assigning states to Gaussians from a GMM; and a probability and weight calculator for calculating state transition probabilities and Gaussian weights with respect to a plurality of HMM states to provide one of a Text Dependent (TD) HMM speaker recognition mode and a Text Constrained (TC) HMM speaker recognition mode in the TI GMM speaker recognition system. - View Dependent Claims (6, 7, 8)
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9. An apparatus in one of a Text Dependent (TD) Hidden Markov Model (HMM) speaker recognition system and a Text Constrained (TC) HMM speaker recognition system, comprising:
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an HMM generator for creating an HMM with one of a smaller number of states and a larger number of states by one of pooling Gaussians from a plurality of HMM states into a single HMM state and splitting the Gaussians from the plurality of HMM states into different HMM states, respectively; and a Gaussian weight normalizer for normalizing Gaussian weights with respect to the HMM states to provide one of a TD HMM speaker recognition mode and a TC HMM speaker recognition mode in another one of the TD HMM speaker recognition system and the TC HMM speaker recognition system. - View Dependent Claims (10, 11, 12, 13)
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14-27. -27. (canceled)
Specification