| Presentation | 2007-12-07 Accurate sound source localization using multiple small microphone arrays and ultrasonic distance measurement Kazunori KOBAYSHI, Ken'ichi FURUYA, Yoichi HANEDA, Akitoshi KATAOKA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Automatic camera steering systems by using microphone array are used in video conferencing systems. However, detecting the distance to the talker is difficult in conventional methods of estimating talker locations when the microphone array is small. For this reason, the conventional systems could not control the zoom of camera accurately. In this report, we proposed a method of estimating microphone and talker locations by using the small microphne array settled on the camera unit and the mobile microphne array. The proposed method measures the distance between loudspeakers settled on the camera unit and microphones by using ultrasonic. The proposed method accurately estimates the locations by using the measured distances and time diffences of arraival between microphones. The experimental results with real-time estimation system demonstrated that the accuracy of estimating locations in the proposed method is much higher than that in the conventional method. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Microphone array / localization / camera control / video conference / ultrasonic |
| Paper # | EA2007-88 |
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| Conference Information | |
| Committee | EA |
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| Conference Date | 2007/11/30(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) | Accurate sound source localization using multiple small microphone arrays and ultrasonic distance measurement |
| Sub Title (in English) | |
| Keyword(1) | Microphone array |
| Keyword(2) | localization |
| Keyword(3) | camera control |
| Keyword(4) | video conference |
| Keyword(5) | ultrasonic |
| 1st Author's Name | Kazunori KOBAYSHI |
| 1st Author's Affiliation | Nippon Telegraph and Telephone Corporation:NTT Cyber Space Laboratories() |
| 2nd Author's Name | Ken'ichi FURUYA |
| 2nd Author's Affiliation | Nippon Telegraph and Telephone Corporation:NTT Cyber Space Laboratories |
| 3rd Author's Name | Yoichi HANEDA |
| 3rd Author's Affiliation | Nippon Telegraph and Telephone Corporation:NTT Cyber Space Laboratories |
| 4th Author's Name | Akitoshi KATAOKA |
| 4th Author's Affiliation | Nippon Telegraph and Telephone Corporation:NTT Cyber Space Laboratories |
| Date | 2007-12-07 |
| Paper # | EA2007-88 |
| Volume (vol) | vol.107 |
| Number (no) | 370 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |