Speech recognition, which focuses on speech as object, is an important research direction of speech signal processing and a primary technology to realize the communication between human and machines.

语音识别是以语音为研究对象，是语音信号处理的一个重要研究方向，是实现人机通信的主要技术。

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Speech is the primary and most convenient way of communications between individuals.

语音是人类首要的、最便捷的交流方式。

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The localization of the speech source is the primary task of the array signal processing, and the basis of spatial filter designing.

声源定位是阵列信号处理的主要任务之一，是实现空间滤波的基础。

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On the eve of the February 28 Michigan primary, Romney delivered a speech promising a second tax cut on top of the Bush tax cuts to a top rate of 28%.

CNN: Romney caves to far right

There are many technological and economic reasons for this unprecedented explosion of speech and human interaction, but the primary legal reason lies with Sec. 230.

FORBES: The Greatest of All Internet Laws Turns 15

The four-term senator picked South Carolina -- a key primary battleground state -- for his speech in which he criticized Bush's handling of the economy and his foreign policy.

CNN: Blasting Bush, Kerry makes it official