Human speech recognition apparatus and method
AssigneeElectronics and Telecommunications Research Institiute
InventorsHoon CHUNG, Yunkeun Lee
Life of this patent
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Abstract
A speech recognition apparatus generates a feature vector series corresponding to a speech signal, and recognizes a phoneme series corresponding to the feature vector series using sounds corresponding to phonemes and a phoneme language model. In addition, the speech recognition apparatus recognizes vocabulary that corresponds to the recognized phoneme series. At this time, the phoneme language model represents connection relationships between the phonemes, and is modeled according to time-variant characteristics of the phonemes.
Claims15
A speech recognition method that recognizes vocabulary from a speech signal, the method comprising:
- generating a feature vector series that corresponds to the speech signal;
- recognizing a phoneme series corresponding to the feature vector series using a phoneme language model, which indicates connection relationships between phonemes and is modeled in consideration of a location where each of the phonemes is disposed in arbitrary vocabulary;
- and
- recognizing vocabulary that corresponds to the phoneme series.
A speech recognition apparatus that recognizes vocabulary from a speech signal, the apparatus comprising:
- a feature vector series generator that generates a feature vector series corresponding to the speech signal;
- a phoneme recognition unit that derives a phoneme series corresponding to the feature vector series using a phoneme language model, which indicates connection relationships between phonemes and is modeled in consideration of a location where each of the phonemes is disposed in arbitrary vocabulary;
- and
- a vocabulary recognition unit that derives vocabulary that corresponds to the phoneme series.
Dependencies are inferred from the claim text.