| Presentation | 2012-03-16 Iterative Blind Spatial Subtraction Array for Musical-Noise-Free Speech Enhancement in Diffuse Noise Ryoichi MIYAZAKI, Hiroshi SARUWATARI, Kiyohiro SHIKANO, Kazunobu KONDO, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this report, we propose a new iterative signal extraction method using a microphone array that can be applied to nonstationary noise. In our previous study, it was found that optimized iterative spectral subtraction (SS) results in speech enhancement with almost no musical noise generation, but this method is valid only for stationary noise. The proposed method consists of iterative blind dynamic noise estimation by independent component analysis (ICA) and musical-noise-free speech extraction by modified iterative SS, where multiple iterative SS is applied to each channel while maintaining the multi-channel property reused for ICA. Also, related to the proposed method, we discuss the justification of applying ICA to such signals nonlinearly distorted by SS. From objective and subjective evaluations, we reveal that the proposed method outperforms the conventional method. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Speech enhancement / higher-order statistics / iterative spectral subtraction / microphone array |
| Paper # | EA2011-125 |
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| Conference Information | |
| Committee | EA |
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| Conference Date | 2012/3/9(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Paper Information | |
| Registration To | Engineering Acoustics (EA) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Iterative Blind Spatial Subtraction Array for Musical-Noise-Free Speech Enhancement in Diffuse Noise |
| Sub Title (in English) | |
| Keyword(1) | Speech enhancement |
| Keyword(2) | higher-order statistics |
| Keyword(3) | iterative spectral subtraction |
| Keyword(4) | microphone array |
| 1st Author's Name | Ryoichi MIYAZAKI |
| 1st Author's Affiliation | Graduate school of Information Science, Nara Institute of Science and Technology() |
| 2nd Author's Name | Hiroshi SARUWATARI |
| 2nd Author's Affiliation | Graduate school of Information Science, Nara Institute of Science and Technology |
| 3rd Author's Name | Kiyohiro SHIKANO |
| 3rd Author's Affiliation | Graduate school of Information Science, Nara Institute of Science and Technology |
| 4th Author's Name | Kazunobu KONDO |
| 4th Author's Affiliation | Yamaha Corporate Research & Development Center |
| Date | 2012-03-16 |
| Paper # | EA2011-125 |
| Volume (vol) | vol.111 |
| Number (no) | 490 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |