| Presentation | 2003/6/13 A Microphone Array System for Automatic Gain Control Kazunori KOBAYASHI, Ken'ichi FURUYA, Akitoshi KATAOKA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We propose a microphone array system for automatic gain control to adjust the speech level in teleconferencing systems. The conventional automatic gain control (AGC) adjusts the level of speech picked up by single microphone. However, in a group teleconference, speech levels vary with distances between talkers and microphone. Therefore, even if the conventional AGC adjusts microphone gain for a talker to achieve appropriate level, the gain may be ineffective for the other talkers. The proposed method solves this problem using microphone array. The proposed array estimates speech level of each talker by estimating talker locations. Then, the proposed array appropriately controls the directivity pattern to achieve constant speech levels for all talkers. Experiments show that the proposed method is effective at gain control for multiple talkers. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Microphone array / Automatic gain control / AGC / Adaptive array / Sound source localization |
| Paper # | EA2003-47 |
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| Conference Information | |
| Committee | EA |
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| Conference Date | 2003/6/13(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) | A Microphone Array System for Automatic Gain Control |
| Sub Title (in English) | |
| Keyword(1) | Microphone array |
| Keyword(2) | Automatic gain control |
| Keyword(3) | AGC |
| Keyword(4) | Adaptive array |
| Keyword(5) | Sound source localization |
| 1st Author's Name | Kazunori KOBAYASHI |
| 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 | Akitoshi KATAOKA |
| 3rd Author's Affiliation | Nippon Telegraph and Telephone Corporation NTT Cyber Space Laboratories |
| Date | 2003/6/13 |
| Paper # | EA2003-47 |
| Volume (vol) | vol.103 |
| Number (no) | 129 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |