| Presentation | 2006/3/16 A Study on Noise Reconstruction System Based on System Identification with Step Size Control Naoto SASAOKA, Masatoshi WATANABE, Yoshio ITOH, Kensaku FUJII, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A noise reduction method is proposed to reduce background noise in noisy speech. We have investigated a noise reconstruction system using a linear prediction error filter (LPEF) and a noise reconstruction filter (NRF). An input signal of a LPEF becomes a white signal. Assuming that background noise is generated by exciting a linear system with a white signal, the background noise can be reconstructed from white noise by estimating a noise generating system. It is a NRF used as system identification that estimates a noise generating system. However, since a residual speech is included in an input signal of a NRF, it is a necessary to use a small step size, which enables us to update coefficients of a NRF without estimating a speech signal. Therefore, it is difficult for a NRF to track non-stationary noise. In order to solve the problem, a noise reconstruction system using step size control is proposed. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Noise Reduction / System Identification / NLMS Algorithm / Step Size Control |
| Paper # | SIS2005-77 |
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| Conference Information | |
| Committee | SIS |
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| Conference Date | 2006/3/16(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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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) | A Study on Noise Reconstruction System Based on System Identification with Step Size Control |
| Sub Title (in English) | |
| Keyword(1) | Noise Reduction |
| Keyword(2) | System Identification |
| Keyword(3) | NLMS Algorithm |
| Keyword(4) | Step Size Control |
| 1st Author's Name | Naoto SASAOKA |
| 1st Author's Affiliation | Faculty of Engineering, Tottori University() |
| 2nd Author's Name | Masatoshi WATANABE |
| 2nd Author's Affiliation | Faculty of Engineering, Tottori University |
| 3rd Author's Name | Yoshio ITOH |
| 3rd Author's Affiliation | Faculty of Engineering, Tottori University |
| 4th Author's Name | Kensaku FUJII |
| 4th Author's Affiliation | Graduate school of Engineering, University of Hyogo |
| Date | 2006/3/16 |
| Paper # | SIS2005-77 |
| Volume (vol) | vol.105 |
| Number (no) | 678 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |