| Presentation | 2005-11-17 Single-channel non-stationary noise reduction for teleconferences Kenichi NOGUCHI, Sumitaka SAKAUCHI, Kenichi FURUYA, Yoichi HANEDA, Akitoshi KATAOKA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper propose a single channel non-stationary noise reduction for teleconferences. The method is composed of the noise detection part and the noise reduction part. The detection part uses a linear prediction residual signal. The reduction part is composed of the two noise reduction methods. The combination of the subband limiter for the noise in high frequencies and harmonic enhancement for the noise in low frequencies has the effect of noise reducing with fewer distortion caused by reduction processes. The results of computer simulation showed that the A-weighted sound pressure level reduced by about 3.6dB. The results of the subjective tests confirm that the proposed method are effective in improving the tone quality. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Non-stationary noise reduction / Noise detection / Subband limiter / Harmonic enhancement |
| Paper # | EA2005-73 |
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| Conference Information | |
| Committee | EA |
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| Conference Date | 2005/11/10(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Engineering Acoustics (EA) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Single-channel non-stationary noise reduction for teleconferences |
| Sub Title (in English) | |
| Keyword(1) | Non-stationary noise reduction |
| Keyword(2) | Noise detection |
| Keyword(3) | Subband limiter |
| Keyword(4) | Harmonic enhancement |
| 1st Author's Name | Kenichi NOGUCHI |
| 1st Author's Affiliation | NTT Cyber Space Laboratories, NTT Corporation() |
| 2nd Author's Name | Sumitaka SAKAUCHI |
| 2nd Author's Affiliation | NTT Cyber Space Laboratories, NTT Corporation |
| 3rd Author's Name | Kenichi FURUYA |
| 3rd Author's Affiliation | NTT Cyber Space Laboratories, NTT Corporation |
| 4th Author's Name | Yoichi HANEDA |
| 4th Author's Affiliation | NTT Cyber Space Laboratories, NTT Corporation |
| 5th Author's Name | Akitoshi KATAOKA |
| 5th Author's Affiliation | NTT Cyber Space Laboratories, NTT Corporation |
| Date | 2005-11-17 |
| Paper # | EA2005-73 |
| Volume (vol) | vol.105 |
| Number (no) | 403 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |