| Presentation | 2002/12/12 Syllable-Based Acoustical Modeling for Japanese Spontaneous Speech Recognition Jun OGATA, Yasuo ARIKI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We study on a syllable-based acoustical modeling method for Japanese spontaneous speech recognition. Traditionally, mora-based acoustic models have been adopted for Japanese read speech recognition system. In this paper, syllable-based unit and mora-based unit are clealy distinguished in their definition, and syllables are shown to more suitable as an acoustic model in Japanese spontaneous speech recognition. In spontaneous speech, a vowel lengthening occurs frequently, and recognition accuracy is greatly affected by this phenomena. In this view point, we propose an acoustical modeling technique that emplicitly incorporates the vowel lengthening in syllable-based HMMs. Experimental results showed that the proposed model could exceed the performance of conventionally used cross-word triphone model and mora-based model in Japanese spontaneous speech recognition task. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | spontaneous speech / syllable / mora / vowel lengthning / HMM |
| Paper # | NLC2002-52 |
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| Conference Information | |
| Committee | NLC |
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| Conference Date | 2002/12/12(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Natural Language Understanding and Models of Communication (NLC) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Syllable-Based Acoustical Modeling for Japanese Spontaneous Speech Recognition |
| Sub Title (in English) | |
| Keyword(1) | spontaneous speech |
| Keyword(2) | syllable |
| Keyword(3) | mora |
| Keyword(4) | vowel lengthning |
| Keyword(5) | HMM |
| 1st Author's Name | Jun OGATA |
| 1st Author's Affiliation | Faculty of Science and Technology, Ryukoku University() |
| 2nd Author's Name | Yasuo ARIKI |
| 2nd Author's Affiliation | Faculty of Science and Technology, Ryukoku University |
| Date | 2002/12/12 |
| Paper # | NLC2002-52 |
| Volume (vol) | vol.102 |
| Number (no) | 527 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |