| Presentation | 2012-02-10 Improvements of blind noise suppression method for Non-Audible Murmur recognition tolerating user movement Shunta ISHII, Tomoki TODA, Hiroshi SARUWATARI, Sakriani SAKTI, Satoshi NAKAMURA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Recently, speech recognition with Non-Audible Murmur (NAM) was proposed in order to use speech interfaces in quiet environment where we hesitate to speech. NAM is a very soft whispered voice detected with NAM microphone, which is one of the body-conductive microphones. The detected NAM signal suffers from noise caused by speaker's movement because it changes the setting condition of NAM microphone. In order to suppress the noise, the blind noise suppression method using a stereo NAM signal detected with two NAM microphones was proposed. In this paper, we achieve further improvements in noise suppression performance by introducing a new blind channel integration process to emphasize the NAM signal. The proposed method is capable of automatically designing the enhancement filter to integrate the stereo signal by compensating for differences of acoustic characteristics between the two channels. The effectiveness of the proposed method is demonstrated from the results of experimental evaluations in a large vocabulary continuous speech recognition. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Non-Audoble Murmur recognition / Stereo signal processing / Blind spatial subtraction array / Non stationary noise / channel integration |
| Paper # | PRMU2011-233,SP2011-148 |
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| Conference Information | |
| Committee | PRMU |
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| Conference Date | 2012/2/2(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Pattern Recognition and Media Understanding (PRMU) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Improvements of blind noise suppression method for Non-Audible Murmur recognition tolerating user movement |
| Sub Title (in English) | |
| Keyword(1) | Non-Audoble Murmur recognition |
| Keyword(2) | Stereo signal processing |
| Keyword(3) | Blind spatial subtraction array |
| Keyword(4) | Non stationary noise |
| Keyword(5) | channel integration |
| 1st Author's Name | Shunta ISHII |
| 1st Author's Affiliation | Nara Institute of Science and Technology() |
| 2nd Author's Name | Tomoki TODA |
| 2nd Author's Affiliation | Nara Institute of Science and Technology |
| 3rd Author's Name | Hiroshi SARUWATARI |
| 3rd Author's Affiliation | Nara Institute of Science and Technology |
| 4th Author's Name | Sakriani SAKTI |
| 4th Author's Affiliation | Nara Institute of Science and Technology |
| 5th Author's Name | Satoshi NAKAMURA |
| 5th Author's Affiliation | Nara Institute of Science and Technology |
| Date | 2012-02-10 |
| Paper # | PRMU2011-233,SP2011-148 |
| Volume (vol) | vol.111 |
| Number (no) | 430 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |