| Presentation | 2004/9/9 Acoustic Echo Cancellation Using Sub-Adaptive Filter : A Study on Echo Path Change Detector Masayuki OTANI, Yoshinobu KAJIKAWA, Yasuo NOMURA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we examine a sub adaptive digital filter(Sub-ADF) which plays the auxiliary role for an adaptive digital filter(ADF) in acoustic echo cancellation. A feature of Sub-ADF is to be able to estimate the updating state of ADF. Sub-ADF can consequently control the step-size parameter of ADF optimally. In this paper, we also propose an echo path change detector which uses variations of ADF coefficients. As a result, the proposed method is robust to echo path change and can improve the ERLE from 10 to 15 [dB] compared with some conventional methods.nee, the proposed method can realize superior convergence performance to the conventional ones under bad environments such as the double-talk. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | acoustic echo canceller / echo path / double talk / step size control |
| Paper # | EA2004-51,SIP2004-55,SIS2004-22 |
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| Conference Information | |
| Committee | SIP |
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| Conference Date | 2004/9/9(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 | Signal Processing (SIP) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Acoustic Echo Cancellation Using Sub-Adaptive Filter : A Study on Echo Path Change Detector |
| Sub Title (in English) | |
| Keyword(1) | acoustic echo canceller |
| Keyword(2) | echo path |
| Keyword(3) | double talk |
| Keyword(4) | step size control |
| 1st Author's Name | Masayuki OTANI |
| 1st Author's Affiliation | Department of Electronics, Faculty of Engineering, Kansai University() |
| 2nd Author's Name | Yoshinobu KAJIKAWA |
| 2nd Author's Affiliation | Department of Electronics, Faculty of Engineering, Kansai University |
| 3rd Author's Name | Yasuo NOMURA |
| 3rd Author's Affiliation | Department of Electronics, Faculty of Engineering, Kansai University |
| Date | 2004/9/9 |
| Paper # | EA2004-51,SIP2004-55,SIS2004-22 |
| Volume (vol) | vol.104 |
| Number (no) | 305 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |