| Presentation | 2012-01-27 Study on identification method of feedback path in active noise control system Tatsuya SAKAI, Yusuke IWAMATSU, Kensaku FUJII, Mitsuji MUNEYASU, Masakazu MORIMOTO, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we propose an identification method of feedback path which occurs in active noise control systems. In active noise control systems, if feedback path occurs, the sound emitted from the speaker is detected by the noise detection microphone, therefore it causes howling, and failure of a speaker. To solve this problem, we use that we can calculate primary system and secondary system in simultaneous equations method. In this paper, we present a method that we calculate the identification error of feedback path and feedback path control filter coefficient from that result, add the error to feedback path control filter coefficient, and finally verify the validity of them. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | active noise control / feedback path / simultaneous equations method / auxiliary filter / error microphone |
| Paper # | EA2011-118 |
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| Conference Information | |
| Committee | EA |
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| Conference Date | 2012/1/19(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) | Study on identification method of feedback path in active noise control system |
| Sub Title (in English) | |
| Keyword(1) | active noise control |
| Keyword(2) | feedback path |
| Keyword(3) | simultaneous equations method |
| Keyword(4) | auxiliary filter |
| Keyword(5) | error microphone |
| 1st Author's Name | Tatsuya SAKAI |
| 1st Author's Affiliation | Faculty of Engineering, University of Hyogo() |
| 2nd Author's Name | Yusuke IWAMATSU |
| 2nd Author's Affiliation | Faculty of Engineering, University of Hyogo |
| 3rd Author's Name | Kensaku FUJII |
| 3rd Author's Affiliation | Faculty of Engineering, University of Hyogo |
| 4th Author's Name | Mitsuji MUNEYASU |
| 4th Author's Affiliation | Faculty of Engineering and Science, Kansai University |
| 5th Author's Name | Masakazu MORIMOTO |
| 5th Author's Affiliation | Faculty of Engineering, University of Hyogo |
| Date | 2012-01-27 |
| Paper # | EA2011-118 |
| Volume (vol) | vol.111 |
| Number (no) | 402 |
| Page | pp.pp.- |
| #Pages | 6 |
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