| Presentation | 2007-04-27 Performance improvement on DOA estimation from binaural sound Takayuki WAKATAKE, Yoshifumi NAGATA, Satoshi IWASAKI, Takahiko HARIYAMA, Toyota FUJIOKA, Masato ABE, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In order to improve estimation accuracy of directions of arrival (DOA) of sound sources, we propose a new weighting function for averaging multiple spctral components. We exploit a ratio between the eigen-values obtained from the auto correlation matrix at each frequency bin for an weighting function. This method improves the estimatuon accuracy in the cases where a single sound source exists. Furthermore, we propose a iterative method based on the weighted Wiener gain to coop with multiple source environment. At first, this method regards the maxmum peak in the spatial spectrum as a one source. Next, a filter to reduce the spectral components that contribute the maximum peak is applied and re-estimate the second source to detect the maximum peak in the residual spatial spectrum. While the methods using the eigen-ratio weighting function and the weighted Wiener gain were almost equivalent in a single source environment, the iterative method for the weighted Wiener gain only attained good performance for the cases where multiple sound source exist. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | directional microphone / HRTF / Wiener gain / elevation angle estimation / two-dimensional DOA estimation |
| Paper # | EA2007-4 |
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| Committee | EA |
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| Conference Date | 2007/4/20(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) | Performance improvement on DOA estimation from binaural sound |
| Sub Title (in English) | |
| Keyword(1) | directional microphone |
| Keyword(2) | HRTF |
| Keyword(3) | Wiener gain |
| Keyword(4) | elevation angle estimation |
| Keyword(5) | two-dimensional DOA estimation |
| 1st Author's Name | Takayuki WAKATAKE |
| 1st Author's Affiliation | Department of Computer and Information Science, Iwate University() |
| 2nd Author's Name | Yoshifumi NAGATA |
| 2nd Author's Affiliation | Department of Computer and Information Science, Iwate University |
| 3rd Author's Name | Satoshi IWASAKI |
| 3rd Author's Affiliation | Aichi Medical University |
| 4th Author's Name | Takahiko HARIYAMA |
| 4th Author's Affiliation | Hamamatsu University School of Medicine |
| 5th Author's Name | Toyota FUJIOKA |
| 5th Author's Affiliation | Department of Computer and Information Science, Iwate University |
| 6th Author's Name | Masato ABE |
| 6th Author's Affiliation | Department of Computer and Information Science, Iwate University |
| Date | 2007-04-27 |
| Paper # | EA2007-4 |
| Volume (vol) | vol.107 |
| Number (no) | 26 |
| Page | pp.pp.- |
| #Pages | 6 |
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