System and method for performing speech recognition in cyclostationary noise environments
First Claim
1. A system for performing a cyclostationary noise equalization procedure in a speech recognition device, comprising:
- a characterization module configured to convert original cyclostationary noise data from an operating environment of said speech recognition device into target stationary noise data by performing a cyclostationary noise characterization process; and
a conversion module coupled to said characterization module for converting an original training database into a modified training database by incorporating said target stationary noise data into said original training database, said modified training database then being utilized to train a recognizer from said speech recognition device.
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Abstract
A system and method for performing speech recognition in cyclostationary noise environments includes a characterization module that may access original cyclostationary noise from an intended operating environment of a speech recognition device. The characterization module may then convert the original cyclostationary noise into target stationary noise which retains characteristics of the original cyclostationary noise. A conversion module may then generate a modified training database by utilizing the target stationary noise to modify an original training database that was prepared for training a recognizer in the speech recognition device. A training module may then train the recognizer with the modified training database to thereby optimize speech recognition procedures in cyclostationary noise environments.
9 Citations
43 Claims
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1. A system for performing a cyclostationary noise equalization procedure in a speech recognition device, comprising:
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a characterization module configured to convert original cyclostationary noise data from an operating environment of said speech recognition device into target stationary noise data by performing a cyclostationary noise characterization process; and
a conversion module coupled to said characterization module for converting an original training database into a modified training database by incorporating said target stationary noise data into said original training database, said modified training database then being utilized to train a recognizer from said speech recognition device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method for performing a cyclostationary noise equalization procedure in a speech recognition device, comprising the steps of:
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converting original cyclostationary noise data from an operating environment of said speech recognition device into target stationary noise data with a characterization module by performing a cyclostationary noise characterization process;
converting an original training database into a modified training database with a conversion module by incorporating said target stationary noise data into said original training database; and
training a recognizer from said speech recognition device by utilizing said modified training database. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
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41. An apparatus for performing a cyclostationary noise equalization procedure in a speech recognition device, comprising:
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means for converting original cyclostationary noise data from an operating environment of said speech recognition device into target stationary noise data by performing a cyclostationary noise characterization process;
means for converting an original training database into a modified training database by incorporating said target stationary noise data into said original training database; and
means for training a recognizer from said speech recognition device by utilizing said modified training database.
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42. A computer-readable medium comprising program instructions for performing a cyclostationary noise equalization procedure in a speech recognition device by performing the steps of:
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converting original cyclostationary noise data from an operating environment of said speech recognition device into target stationary noise data with a characterization module by performing a cyclostationary noise characterization process;
converting an original training database into a modified training database with a conversion module by incorporating said target stationary noise data into said original training database; and
training a recognizer from said speech recognition device by utilizing said modified training database.
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43. A system for performing a noise equalization procedure in a speech recognition device, comprising:
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a characterization module configured to convert original noise data from an operating environment of said speech recognition device into target noise data; and
a conversion module coupled to said characterization module for converting an original training database into a modified training database by incorporating said target noise data into said original training database, said modified training database then being utilized to train a recognizer from said speech recognition device.
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Specification