Active noise control technology has recently been used to increase the sound transmission loss of double wall structures.

噪声主动控制技术目前已用增加双隔板结构对声音进行衰减。

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An adaptive control approach applied to practical active sound absorption systems is presented.

研究了实际系统中有源声吸收自适应控制方案。

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With an example of simply supported beam, it is presented to active control structure-borne sound by mean of radiation modes.

以简支梁为例，通过声辐射模态研究简支梁声辐射的有源控制。

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There is active 3D television with goggles and loaner blu-ray discs, surround sound, multiple wireless tablets that control everything from lights to curtains to room service menus - in seven languages, internet radio with thousands of choices, free international phone calls, the list goes on and on.

FORBES: Peninsula, Hong Kong