| Presentation | 2006/6/16 Sound Source Separation using Null Beamformer and Spectral Subtraction, and its Application to Cellular Phone Shintaro TAKADA, Satoshi KANBA, Tetsuji OGAWA, Kenzo AKAGIRI, Tetsunori KOBAYASHI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A novel speech segregation method which consists of a combination of the null beam former using 3 channel omni-directional microphones and the spectral subtraction is proposed and successfully applied to the mobile terminal devices such as cellular phones and PDAs. To realize the application of the speech recognition technology to the mobile devices in noisy environments, the disturbance sounds or ambient noises are required to be suppressed under the restrictions of small number of microphones, space-saving microphone arrangement, and low-cost calculation. The proposed method aims at solving this problem. In this paper, using the microphones actually embedded in the cellular phone, the performance of the proposed method is evaluated. As the result of the sound source separation and the continuous speech recognition experiments for double-talk, the proposed method improved the PESQ-based MOS value by 1 point and achieved 80% word accuracy in the speech recognition. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Sound Source Separation / Speech Recognition / Cellular Phone / Null Beamformer / Spectral Subtraction |
| Paper # | SP2006-12 |
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| Conference Information | |
| Committee | SP |
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| Conference Date | 2006/6/16(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Vice Chair | |
| Secretary | |
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| Paper Information | |
| Registration To | Speech (SP) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Sound Source Separation using Null Beamformer and Spectral Subtraction, and its Application to Cellular Phone |
| Sub Title (in English) | |
| Keyword(1) | Sound Source Separation |
| Keyword(2) | Speech Recognition |
| Keyword(3) | Cellular Phone |
| Keyword(4) | Null Beamformer |
| Keyword(5) | Spectral Subtraction |
| 1st Author's Name | Shintaro TAKADA |
| 1st Author's Affiliation | Dept. of Computer Science, Waseda University() |
| 2nd Author's Name | Satoshi KANBA |
| 2nd Author's Affiliation | Dept. of Computer Science, Waseda University |
| 3rd Author's Name | Tetsuji OGAWA |
| 3rd Author's Affiliation | Dept. of Computer Science, Waseda University |
| 4th Author's Name | Kenzo AKAGIRI |
| 4th Author's Affiliation | Dept. of Computer Science, Waseda University |
| 5th Author's Name | Tetsunori KOBAYASHI |
| 5th Author's Affiliation | Dept. of Computer Science, Waseda University |
| Date | 2006/6/16 |
| Paper # | SP2006-12 |
| Volume (vol) | vol.106 |
| Number (no) | 123 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |