| Presentation | 2006/12/15 An Investigation of Variation of Recording Systems and Cepstrum Normalization for Recognition of Lecture Speech Shingo TOGASHI, Norihide KITAOKA, Seiichi NAKAGAWA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we described the investigation of methods to improve the performance of ASR used for extending lecture information into semantic contents. First, we investigate the effects of difference among microphones, acoustic models and decorders. It turned out that using pin-microphone decrease up to 23% compared to handheld-microphone in accuracy. There is significant impact by the difference between handheld-microphone and pin-microphone to performance. To improve the performance even when using a cheap equipment like this, we tried to apply some cepstrum normalization methods, like CMN, CVN and HEQ to lecture speech data, in which we considered about unit of the normalization process. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Lecture Speech / Automatic Speech Recognition / Cepstrum Normalization / Histogram Normalization |
| Paper # | NLC2006-65,SP2006-121 |
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| Conference Information | |
| Committee | NLC |
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| Conference Date | 2006/12/15(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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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) | An Investigation of Variation of Recording Systems and Cepstrum Normalization for Recognition of Lecture Speech |
| Sub Title (in English) | |
| Keyword(1) | Lecture Speech |
| Keyword(2) | Automatic Speech Recognition |
| Keyword(3) | Cepstrum Normalization |
| Keyword(4) | Histogram Normalization |
| 1st Author's Name | Shingo TOGASHI |
| 1st Author's Affiliation | Toyohashi University of Technology() |
| 2nd Author's Name | Norihide KITAOKA |
| 2nd Author's Affiliation | Nagoya University |
| 3rd Author's Name | Seiichi NAKAGAWA |
| 3rd Author's Affiliation | Toyohashi University of Technology |
| Date | 2006/12/15 |
| Paper # | NLC2006-65,SP2006-121 |
| Volume (vol) | vol.106 |
| Number (no) | 442 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |