文章基本信息

标题：Simulation Of Echo Cancellation Of Speech Signal In Noisy Environment
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作者：R.Jegan ; R.Manikandan ; W.S.Nimi 等
期刊名称：International Journal of Advanced Research in Computer Engineering & Technology (IJARCET)
印刷版ISSN：2278-1323
出版年度：2012
卷号：1
期号：10
页码：23-25
出版社：Shri Pannalal Research Institute of Technolgy
摘要：Acoustic echo cancellation is important for audio teleconferencing when simultaneous communication of speech is necessary. In acoustic echo cancellation, a measured microphone signal contains two signals such as the near-end speech signal and the far-end echoed speech signal. The goal is to remove the far-end echoed speech signal from the microphone signal so that only the near-end speech signal is transmitted. In speech s ig na l pr oce s si n g s low convergence and high computational burden are the main problems. The proposed m e t h o d is based on usin g adap tive filter and uses the least mean square (LMS) algorithm to control a filter coefficients to reduce the echo in the input speech. Here the algorithm is developed and simulated with help of LabVIEW.
关键词：Adaptive filter; LMS algorithm; Echo ; cancellation; LabVIEW