| Presentation | 1999/12/17 Wide-Band Sharp Directinal Microphone System Katsuhito Kouno, Masataka Nakamura, Toshitaka Yamato, Atsuyuki Takashima, |
|---|---|
| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In order for the speech recognition system to have a high performance in noisy environment, wide-band directional microphone system to ensure high S/N is required. A sharp directional function proposed in this paper is derived by using Fourier series approximation, in which the concept is based on uni-directional function of 3 microphones-integration method. And then, a microphone system of wide-band directivity is shown. This system is composed of five non-directional microphones and analog electronic circuits. Finally, by the numerical results and simulation results, this system is comfirmed to have sharp directivity in a wide frequency-band from 300H_z to 5kH_z, required for speech recognition. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | microphone array / high S/N / hands-free / acoustic signal processing / speech recognition |
| Paper # | EA99-85 |
| Date of Issue |
| Conference Information | |
| Committee | EA |
|---|---|
| Conference Date | 1999/12/17(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Engineering Acoustics (EA) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Wide-Band Sharp Directinal Microphone System |
| Sub Title (in English) | |
| Keyword(1) | microphone array |
| Keyword(2) | high S/N |
| Keyword(3) | hands-free |
| Keyword(4) | acoustic signal processing |
| Keyword(5) | speech recognition |
| 1st Author's Name | Katsuhito Kouno |
| 1st Author's Affiliation | Hiroshima Institute of Technology() |
| 2nd Author's Name | Masataka Nakamura |
| 2nd Author's Affiliation | Hiroshima Institute of Technology |
| 3rd Author's Name | Toshitaka Yamato |
| 3rd Author's Affiliation | Fujitsu TEN Ltd |
| 4th Author's Name | Atsuyuki Takashima |
| 4th Author's Affiliation | Fujitsu TEN Ltd |
| Date | 1999/12/17 |
| Paper # | EA99-85 |
| Volume (vol) | vol.99 |
| Number (no) | 518 |
| Page | pp.pp.- |
| #Pages | 9 |
| Date of Issue | |