它包括到其上方边缘建立了一个麦克风，并使用先进的音频技术，以抑制不必要的背景噪音。

It includes a microphone built into its top edge and USES sophisticated audio technology to suppress unwanted background noise.

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将此滤波器应用于复杂噪音背景的话音信号提取，能很好地抑制背景噪声，从而获得清晰的话音信号。

This filter can effectively restrain background noise and acquire clear speech signal when applied in speech signal pick-up from the background with complex noise.

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