Data processing: speech signal processing – linguistics – language – Speech signal processing – Recognition
Reexamination Certificate
2007-02-20
2007-02-20
Dorvil, Richemond (Department: 2626)
Data processing: speech signal processing, linguistics, language
Speech signal processing
Recognition
C231S004000, C231S004000, C231S004000, C231S004000, C231S004000
Reexamination Certificate
active
09698470
ABSTRACT:
Methods and apparatus for automatically deriving multiple phonetic baseforms of a word from a speech utterance of this word are provided in accordance with the present invention. In one embodiment, a method of automatically generating two or more phonetic baseforms from a spoken utterance representing a word includes the steps of: transforming the spoken utterance into a stream of acoustic observations; generating two or more strings of subphone units, wherein each string of subphone units represents a string of subphone units substantially maximizing a log-likelihood of the stream of acoustic observations, and wherein the log-likelihood is computed as a weighted sum of a transition score associated with a transition model and of an acoustic score associated with an acoustic model; and converting the two or more strings of subphone units into two or more phonetic baseforms.
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Deligne Sabine V.
Ghislain Maison Benoit Emmanuel
Gopinath Ramesh Ambat
Dorvil Richemond
Dougherty Anne V.
Han Qi
International Business Machines - Corporation
Ryan & Mason & Lewis, LLP
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