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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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.nce, 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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Committee | SIS |
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Conference Date | 2004/9/9(1days) |
Place (in Japanese) | (See Japanese page) |
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Topics (in Japanese) | (See Japanese page) |
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Paper Information | |
Registration To | Smart Info-Media Systems (SIS) |
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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) | 307 |
Page | pp.pp.- |
#Pages | 6 |
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