耳机中的传感器感受脸颊的振动度，微型麦克风清理和消除背景中的噪音。

A sensor in the Jawbone unit picks up vibrations in the cheeks, while tiny microphones sort out background noise and cancel it.

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索尼新款降噪耳塞，也采用MEMS技术，声称可以消除90%背景噪音，该耳塞有三种不同的设置：飞机；火车和公交；一般办公室喧哗。

It claims these can eliminate more than 90% of background noise. The earbuds have three separate settings: one for planes, one for trains and buses, and one for general office hubbub.

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在预处理阶段，利用彩色HSV模型分割原IC图像，然后用形态学开运算消除背景噪音。

In preprocessing phase, the IC image is segmented using HSV color model and the background noises are removed from the IC noisy image by the morphological operating.

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