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US 8,886,534 B2Granted
Speech recognition apparatus, speech recognition method, and speech recognition robot
AssigneeHonda Motor Co., Ltd.
InventorsMikio Nakano, Naoto Iwahashi, Kotaro Funakoshi, Taisuke Sumii
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Abstract
A speech recognition apparatus includes a speech input unit that receives input speech, a phoneme recognition unit that recognizes phonemes of the input speech and generates a first phoneme sequence representing corrected speech, a matching unit that matches the first phoneme sequence with a second phoneme sequence representing original speech, and a phoneme correcting unit that corrects phonemes of the second phoneme sequence based on the matching result.
Claims5
A speech recognition apparatus comprising
- a storage medium storing a relationship between a recognition reliability and a correct answer rate for every phoneme;
- and
- a processor programmed with instructions that, when executed, cause the processor to:
- receive speech;
- recognize phonemes of the speech and generate a first phoneme sequence representing corrected speech;
- match the first phoneme sequence with a second phoneme sequence representing original speech so as to create a pair of a first phoneme extracted from the first phoneme sequence and a second phoneme extracted from the second phoneme sequence;
- and
- replace the second phoneme with the first phoneme when the second phoneme differs from the first phoneme, a predetermined recognition reliability of the first phoneme is higher than a predetermined recognition reliability of the second phoneme, and a correct answer rate of the first phoneme determined based on the relationship stored in the storage medium is higher than a predetermined value.
5 more elements
A speech recognition method, comprising:
- storing, in a storage medium, a relationship between a recognition reliability and a correct answer rate for every phoneme;
- receiving speech;
- recognizing phonemes of the speech;
- generating a first phoneme sequence representing corrected speech;
- matching the first phoneme sequence with a second phoneme sequence representing original speech so as to create a pair of a first phoneme extracted from the first phoneme sequence and a second phoneme extracted from the second phoneme sequence;
- and
- replacing the second phoneme with the first phoneme when the second phoneme differs from the first phoneme, a predetermined recognition reliability of the first phoneme is higher than a predetermined recognition reliability of the second phoneme, and a correct answer rate of the first phoneme determined based on the relationship stored in the storage medium is higher than a predetermined value.
4 more elements
Dependencies are inferred from the claim text.