Description: This application note surveys selected echo cancellation techniques for use in TDM telephony/packet telephony applications. An echo canceller is a system encompassing many interconnected sub-blocks incorporating DSP algorithms and control operations. Platform: |
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Author:Alex |
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Description: we will be addressing the major concerns in telecommunication nowadays which are channel equalization and echo cancellation using different adaptive algorithms in order to identify the most efficient methodology. There are a number of conventional algorithms available in literature and every algorithm has its own properties, however the aim of every adaptive algorithm is to achieve minimum mean square error at a high rate of convergence and with less complexity. The experimental results prove that Normalized Least Mean Square algorithm (NLMS) is the best for channel equalization-we will be addressing the major concerns in telecommunication nowadays which are channel equalization and echo cancellation using different adaptive algorithms in order to identify the most efficient methodology. There are a number of conventional algorithms available in literature and every algorithm has its own properties, however the aim of every adaptive algorithm is to achieve minimum mean square error at a high rate of convergence and with less complexity. The experimental results prove that Normalized Least Mean Square algorithm (NLMS) is the best for channel equalization Platform: |
Size: 2048 |
Author:kumar |
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Description: 语音消回音芯片fm1182最全面的英文资料，对搞免提对讲的人有帮助。-Voice Echo Cancellation chips the fm1182 most comprehensive information in English, people who engage in hands-free intercom. Platform: |
Size: 8119296 |
Author:李浩苒 |
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Description: 改程序是本人在vs2008环境下编译通过的自适应滤波器的回声消除程序，运用了NLMS算法消除回声，效果还不错！-Change the program I compiled in vs2008 environment through the adaptive filter echo cancellation procedures, the use of the NLMS algorithm to eliminate echo, the results were pretty good! Platform: |
Size: 3957760 |
Author:QIX |
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Description: 自适应回声消除的初期迭代统计学模型及改进算法Adaptive echo cancellation of initial iterative statistical model and algorithm-Adaptive echo cancellation of initial iterative statistical model and algorithm Platform: |
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Author: |
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Description: AEC消回音滤波算法，已经验验证通过，欢迎下载可直接使用。
-AEC echo cancellation filter algorithm, has been the experience is verified, welcome to download can be used directly. Platform: |
Size: 2331648 |
Author:caiyanwei |
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Description: 这是一个很好的频域分块自适应滤波的程序，应用于回声消除上，并与NNLMS自适应滤波做了运行速度的比较,FLMS比NLMS快几十倍。
-This is a good frequency-domain block adaptive filtering program on the used in echo cancellation and speed comparison with NNLMS adaptive filtering FLMS several times faster than the NLMS. Platform: |
Size: 613376 |
Author:despise |
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Description: 该代码是从SPEEX中提取出来有关回声消息源码，它采取的是在在频域进行操作，效果比较好(回声消除功能源代码) 可直接使用。
-The code is extracted from the echo of the message source from SPEEX it takes to operate in the frequency domain, the results were better (echo cancellation function source code) can be used directly. Platform: |
Size: 918528 |
Author:清醒 |
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Description: verilog hdl, quartus.64阶的简单回声抵消器，采用的是基本的LMS算法，简单改进，可用于初期了解。功能背景是对通信领域中，比如打电话时自己的声音到达对方经对方环境多径反射又传回自己这边，即回声。为将回声消除采用回声抵消装置。-64 steps a simple echo canceller is used in the basic LMS algorithm, a simple improvement, can be used for the initial understanding. Functional background in the field of communication, such as a call to reach the other environmental multipath reflections after each other and return to their side, that echo of their own voice. To echo cancellation echo cancellation device. Platform: |
Size: 40244224 |
Author:yy |
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