| Presentation | 2006-05-26 Improvement Method of Acoustic Echo Canceller with Sub Adaptive Filter Satoshi OHTA, Yoshinobu KAJIKAWA, Yasuo NOMURA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In the acoustic echo canceller, it is generally desirable to make adjustment of an adaptive filter(ADF) small, as the estimate progresses. However, it is necessary to bring the updating forward at the time of echo path changing, and to stop the updating at the time of a double talk. Therefore, the step size parameter control with a sub-adaptive filter(SUB-ADF) has been already proposed as an acoustic echo canceller responding to the double-talk and the echo path change. However, there are really differences of convergence properties between Sub-ADF and ADF. Hence, this technique has a probrem that an error is caused in controlling step size. Furthermore, this technique cannot operate adequately if a double-talk and a echo path change occure simultaneously. Therefore, we propose a novel method that improves the differences of convergence properties and combines a double-talk detector. The proposed method can realize superior convergence performance to the conventional ones when double-talk occures. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Acoustic Echo Canceller / Adaptive Algorithm / Step Size Control |
| Paper # | EA2006-16,SIP2006-20 |
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| Conference Information | |
| Committee | EA |
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| Conference Date | 2006/5/19(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) | Improvement Method of Acoustic Echo Canceller with Sub Adaptive Filter |
| Sub Title (in English) | |
| Keyword(1) | Acoustic Echo Canceller |
| Keyword(2) | Adaptive Algorithm |
| Keyword(3) | Step Size Control |
| 1st Author's Name | Satoshi OHTA |
| 1st Author's Affiliation | Faculty of Engineering, Kansai University() |
| 2nd Author's Name | Yoshinobu KAJIKAWA |
| 2nd Author's Affiliation | Faculty of Engineering, Kansai University |
| 3rd Author's Name | Yasuo NOMURA |
| 3rd Author's Affiliation | Faculty of Engineering, Kansai University |
| Date | 2006-05-26 |
| Paper # | EA2006-16,SIP2006-20 |
| Volume (vol) | vol.106 |
| Number (no) | 65 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |