APPARATUS AND METHOD FOR SPEECH RECOGNITION, AND APPARATUS AND METHOD FOR TRAINING TRANSFORMATION PARAMETER
First Claim
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1. A speech recognition apparatus comprising:
- an acoustic score calculator configured to use an acoustic model to calculate an acoustic score of a speech input;
an acoustic score transformer configured to transform the calculated acoustic score into an acoustic score corresponding to standard pronunciation by using a transformation parameter; and
a decoder configured to decode the transformed acoustic score to output a recognition result of the speech input.
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Abstract
Provided are a method and an apparatus for speech recognition, and a method and an apparatus for training transformation parameter. A speech recognition apparatus includes an acoustic score calculator configured to use an acoustic model to calculate an acoustic score of a speech input, an acoustic score transformer configured to transform the calculated acoustic score into an acoustic score corresponding to standard pronunciation by using a transformation parameter, and a decoder configured to decode the transformed acoustic score to output a recognition result of the speech input.
30 Citations
26 Claims
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1. A speech recognition apparatus comprising:
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an acoustic score calculator configured to use an acoustic model to calculate an acoustic score of a speech input; an acoustic score transformer configured to transform the calculated acoustic score into an acoustic score corresponding to standard pronunciation by using a transformation parameter; and a decoder configured to decode the transformed acoustic score to output a recognition result of the speech input. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A speech recognition method comprising:
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using an acoustic model to calculate an acoustic score of a speech input; transforming the calculated acoustic score into an acoustic score for standard pronunciation by using a transformation parameter; and decoding the transformed acoustic score to output a recognition result of the speech input. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. An apparatus for training a transformation parameter, the apparatus comprising:
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a training data collector configured to collect, as training data, acoustic score data of actual speech for training, and verification data based on standard pronunciation that corresponds to the actual speech for training; a trainer configured to train the transformation parameter by using the training data; and a data transmitter configured to transmit the trained transformation parameter to a speech recognition apparatus. - View Dependent Claims (16, 17, 18)
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19. A method of training a transformation parameter, the method comprising:
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collecting, as training data, acoustic score data of actual speech and verification data based on standard pronunciation that corresponds to the actual speech for training; training the transformation parameter by using the training data; and transmitting the trained transformation parameter to a speech recognition apparatus. - View Dependent Claims (20, 21, 22)
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23. A speech recognition apparatus comprising:
a processor configured to; calculate a first acoustic score based on a speech input; convert the first acoustic score into a second acoustic score corresponding to standard pronunciation by using a transformation parameter; and decode the second acoustic score to recognize the speech input. - View Dependent Claims (24, 25, 26)
Specification