Acoustic model creation method as well as acoustic model creation apparatus and speech recognition apparatus
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United States of America Patent
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Apr 29, 2008
Grant Date -
Nov 25, 2004
app pub date -
Mar 8, 2004
filing date -
Mar 14, 2003
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Abstract
To provide an acoustic model which can absorb the fluctuation of a phonemic environment in an interval longer than a syllable, with the number of parameters of the acoustic model suppressed to be small, a phoneme-connected syllable HMM/syllable-connected HMM set is generated in such a way that a phoneme-connected syllable HMM set corresponding to individual syllables is generated by combining phoneme HMMs. A preliminary experiment is conducted using the phoneme-connected syllable HMM set and training speech data. Any misrecognized syllable and the preceding syllable of the misrecognized syllable are checked using results of a preliminary experiment syllable label data. The combination between a correct answer syllable for the misrecognized syllable and the preceding syllable of the misrecognized syllable is extracted as a syllable connection. A syllable-connected HMM corresponding to this syllable connection is added into the phoneme-connected syllable HMM set. The resulting phoneme-connected syllable HMM set is trained using the training speech data and the syllable label data.
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- SEIKO EPSON CORPORATION
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Matsumoto, Hiroshi | Nagano, JP | 501 | 5661 |
Miyazawa, Yasunaga | Okaya, JP | 70 | 1685 |
Nishitani, Masanobu | Shiojiri, JP | 19 | 221 |
Yamamoto, Kazumasa | Nagano, JP | 18 | 236 |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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