JICCE (한국정보통신학회)
Current Result Document :
| 한글제목(Korean Title) |
An Echo Canceller Robust to Noise and Residual Echo |
| 영문제목(English Title) |
An Echo Canceller Robust to Noise and Residual Echo |
| 저자(Author) |
Hyun-Tae Kim
Jang-Sik Park
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| 원문수록처(Citation) |
VOL 08 NO. 06 PP. 0640 ~ 0644 (2010. 12) |
한글내용
(Korean Abstract) |
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영문내용
(English Abstract) |
When we talk with hands-free in a car or noisy lobby, the performance of the echo canceller degrade because background noise added to echo caused by the distance from mouth to microphone is relatively long. It gives a reason for necessity of noise-robust and high convergence speed adaptive algorithm. And if acoustic echo canceller operated not perfectly, residual signal going through the echo canceller to far-end speaker remains residual echo, which degrade quality of talk. To solve this problem, post-processing needed to remove residual echo ones more. In this paper, we propose a new acoustic echo canceller, which has noise robust and high convergence speed, linked with linear predictor as a post-processor. By computer simulation, it is confirmed that the proposed algorithm shows better performance from acoustic interference cancellation (AIC) viewpoint.
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| 키워드(Keyword) |
Noise-robust adaptive algorithm
double-talk detector
linear prediction
Post-processing
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| 파일첨부 |
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