| Presentation | 2001/10/19 A study of adaptive algorithm for stereo signals with a power difference Akira Nakagawa, Yoichi Haneda, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | With broadband networks spreading, high-presence acoustic communication like stereophonic full-duplex communication is desired. Thus, a stereophonic acoustic echo canceller is required to avoid howling and echose when loudspeakers and microphones are used for hands- free communication. However, the performance of the acoustic echo canceller is degraded when there is a large power difference between stereo signals received from a remote site; that is the convergence speed of the coefficient error is low. In this paper, we propose normalizing the stereo received signals by the root of the squared summation in the adaptive algorithm of the stereophonic acoustic echo canceller in order to improve the convergence speed. The effectiveness of this is confirmed by computer simulation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Acoustic echo canceller / Stereo power difference / Adaptive algorithm / Root normalization |
| Paper # | EA2001-68 |
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| Conference Information | |
| Committee | EA |
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| Conference Date | 2001/10/19(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Vice Chair | |
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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 study of adaptive algorithm for stereo signals with a power difference |
| Sub Title (in English) | |
| Keyword(1) | Acoustic echo canceller |
| Keyword(2) | Stereo power difference |
| Keyword(3) | Adaptive algorithm |
| Keyword(4) | Root normalization |
| 1st Author's Name | Akira Nakagawa |
| 1st Author's Affiliation | NTT Cyber Space Laboratories() |
| 2nd Author's Name | Yoichi Haneda |
| 2nd Author's Affiliation | NTT Cyber Space Laboratories |
| Date | 2001/10/19 |
| Paper # | EA2001-68 |
| Volume (vol) | vol.101 |
| Number (no) | 382 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |