在我们的例子中，我们找到了真正的声学回声信标。

In our case, we have found the true acoustic echo beacon.

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针对通信系统中的声学回声干扰问题，研究了一种快速收敛和有效的自适应回声抵消算法。

An adaptive conjugate gradient algorithm based on subband decompsition structure was proposed for acoustic echo cancellation in communication systems.

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本文最终设计了一个真实的语音通信系统，包括声学回声消除(aec)、语音增强和自动增益控制(agc)三部分。

In this paper finally designs a really voice communication system, including three parts: Acoustics Echo Cancellation (AEC), Speech Enhancement and automatic gain control (AGC).

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