한국멀티미디어학회:학술대회논문집 (Proceedings of the Korea Multimedia Society Conference)
- 한국멀티미디어학회 1998년도 춘계학술발표논문집
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- Pages.122-127
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- 1998
멀티미디어 PC를 이용한 음향반향제거기
An Acoustic Echo Canceler Using Multimedia PC
초록
NLMS algorithm is widely used as acoustic echo canceller. NLMS algorithm is degraded by the ambient noises and the near-end speech signals. In this paper, a robust acoustic echo cancellation algorithm is proposed. To enhance the echo cancellation performance, the step size of the proposed algorithm is normalized by the sum of the power of the reference signals and the primary signals. As results of comparing the excess mean square errors, it is shown that the proposed algorithm can enhance the performance of cancelling the echo signals. Some experiments, which is used multimedia personal computer, are carried out. As results of experiments, the proposed algorithm shows better performance than conventional ones.
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