| Presentation | 2006-01-26 Simultaneous Direction Estimation of Horns by a Microphone Array Yusuke SHIMADA, Yoshinori TAKEUCHI, Tetsuya MATSUMOTO, Hiroaki KUDO, Noboru OHNISHI, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we propose a sound-source localization system that informs the horn direction to hearing-impaired people. This system can estimate the directions of horns simultaneously. The system consists of estimating the number of horns and estimating the directions of the detected horns. The number of horns is determined by combining fundamental frequency estimation based on the likelihood for higher harmonics and false peak detection. In direction estimation, a histogram of source direction is calculated based on the arrival time difference between microphones obtained by cross-correlation functions. Applying beam-forming to each peak in the histogram, the system outputs the directions with higer power. To evaluate the proposed method, we conducted experiments of direction estimation by using the microphone array signals recorded in the actual environment. We had results that the correct rate of the sound sources is 68.2% and the performance of direction estimation is 43.7%. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | hearing-impaired / microphone array / multi-pitch estimation / cross-correlation / beamforming / histogram of time difference / source localization / delay-of-arrival |
| Paper # | EA2005-95 |
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| Conference Information | |
| Committee | EA |
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| Conference Date | 2006/1/19(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 | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Simultaneous Direction Estimation of Horns by a Microphone Array |
| Sub Title (in English) | |
| Keyword(1) | hearing-impaired |
| Keyword(2) | microphone array |
| Keyword(3) | multi-pitch estimation |
| Keyword(4) | cross-correlation |
| Keyword(5) | beamforming |
| Keyword(6) | histogram of time difference |
| Keyword(7) | source localization |
| Keyword(8) | delay-of-arrival |
| 1st Author's Name | Yusuke SHIMADA |
| 1st Author's Affiliation | Department of Media Science, Graduate School of Information Science, Nagoya University() |
| 2nd Author's Name | Yoshinori TAKEUCHI |
| 2nd Author's Affiliation | Department of Media Science, Graduate School of Information Science, Nagoya University |
| 3rd Author's Name | Tetsuya MATSUMOTO |
| 3rd Author's Affiliation | Department of Media Science, Graduate School of Information Science, Nagoya University |
| 4th Author's Name | Hiroaki KUDO |
| 4th Author's Affiliation | Department of Media Science, Graduate School of Information Science, Nagoya University |
| 5th Author's Name | Noboru OHNISHI |
| 5th Author's Affiliation | Department of Media Science, Graduate School of Information Science, Nagoya University |
| Date | 2006-01-26 |
| Paper # | EA2005-95 |
| Volume (vol) | vol.105 |
| Number (no) | 555 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |