Encouragingly Mr Obama finally began to spell out some of these painful truths this week (in a speech in Pittsburgh); he should do much more.
值得鼓励的是,奥巴马终于在本周说出了一些令人痛心的真相(在匹兹堡的演讲中);而他该做的还有很多。
In this paper finally designs a really voice communication system, including three parts: Acoustics Echo Cancellation (AEC), Speech Enhancement and automatic gain control (AGC).
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。
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