| Presentation | 2000/1/20 Multiple Beam-forming utilizing Reflection signals in real environments Takanobu NISHIURA, Satoshi NAKAMURA, Kiyohiro SHIKANO, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | It is very important for hands-free speech interface to realize high quality capture of distant talking speech. However the capture of distant talking speech is very difficult in low SNR conditions and highly reverberant environments. To cope with this problem, the sound capture using a microphone array has been studied. Recently, multiple beam-forming algorithm is proposed by Flanagan et al.. SNR of this algorithm is shown higher than that of single beam-forming in a computer simulation. However, Flanagan's algorithm may degrade the performance of sound capture in real environments. Because the algorithm is based on the precise information of source positions and the room geometry. An impedance of walls is also not considered in the algorithm. This paper describes the performance of multiple beam-forming in real environments. As a result, it is confirmed that the multiple beam-forming works well in the real environments. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | real environment / microphone array / multiple beam-forming / reflection sounds |
| Paper # | SP99-133 |
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| Conference Information | |
| Committee | SP |
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| Conference Date | 2000/1/20(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 | Speech (SP) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Multiple Beam-forming utilizing Reflection signals in real environments |
| Sub Title (in English) | |
| Keyword(1) | real environment |
| Keyword(2) | microphone array |
| Keyword(3) | multiple beam-forming |
| Keyword(4) | reflection sounds |
| 1st Author's Name | Takanobu NISHIURA |
| 1st Author's Affiliation | Graduate School of Information Science, Nara Institute of Science and Technology() |
| 2nd Author's Name | Satoshi NAKAMURA |
| 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 |
| Date | 2000/1/20 |
| Paper # | SP99-133 |
| Volume (vol) | vol.99 |
| Number (no) | 576 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |