| Presentation | 2007/6/8 Improvement of the Performance of Blind Signal Separation Using A Nonlinear Digital Filter Masato KATOU, Hidekazu KUBOTA, Kaoru ARAKAWA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A new method for improving the performance of blind signal separation is proposed using an adaptive CS filter, which is a nonlinear digital filter proposed by authors before. The adaptive CS filter is effective for reducing small-amplitude additive random noise on speech signals, while preserving the signal waveform of both the abruptly changing parts and continuously changing ones of speech. In this paper, the adaptive CS filter is newly applied as a postprocessor of blind signal separation. When noise is mixed into the input speech signal for the blind signal separation, the performance of the separation is degraded. We show that the performance is improved by applying the output of the blind signal separation to the combination of spectrum subtraction method and the adaptive CS filter. The new system is verified to be effective in processing some actual mixed sound signals including noise. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | nonlinear digital filter / spectrum subtraction / an adaptation CS filter / blind signal separation / speech processing |
| Paper # | SIS2007-15 |
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| Conference Information | |
| Committee | SIS |
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| Conference Date | 2007/6/8(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 | |
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| Paper Information | |
| Registration To | Smart Info-Media Systems (SIS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Improvement of the Performance of Blind Signal Separation Using A Nonlinear Digital Filter |
| Sub Title (in English) | |
| Keyword(1) | nonlinear digital filter |
| Keyword(2) | spectrum subtraction |
| Keyword(3) | an adaptation CS filter |
| Keyword(4) | blind signal separation |
| Keyword(5) | speech processing |
| 1st Author's Name | Masato KATOU |
| 1st Author's Affiliation | Dept. of Computer Science, Meiji University() |
| 2nd Author's Name | Hidekazu KUBOTA |
| 2nd Author's Affiliation | Dept. of Computer Science, Meiji University |
| 3rd Author's Name | Kaoru ARAKAWA |
| 3rd Author's Affiliation | Dept. of Computer Science, Meiji University |
| Date | 2007/6/8 |
| Paper # | SIS2007-15 |
| Volume (vol) | vol.107 |
| Number (no) | 94 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |