Antinoise creates the sounds of silence.
Antinoise creates the sounds of silence.
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抗噪音创造寂静的声音。
DOI：
10.1126/science.252.5005.508
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发表时间：
1991
期刊：
影响因子：
56.9
通讯作者：
J. Alper
中科院分区：
文献类型：
--
作者：
J. Alper
噪音无处不在，而且数量如此之多，以至于它已成为美国最重要的职业和环境健康问题之一。事实上，如果当前的噪音控制研究取得成功，空气中的噪音将会更多，但世界将因此变得更加安静。这种和平悖论是由一种称为主动噪声控制 (ANC) 的数字艺术创新应用所承诺的——事实上，它已经实现了。 ANC 系统已经使工业空调、供暖系统和换气扇安静下来，今年谷物装载设备、冰箱甚至磁共振成像仪 (MRI) 也应该会安静下来。到 1993 年，几辆豪华汽车将配备 ANC 消声器，并且在未来，一些研究人员甚至设想个人耳机（与个人立体声相反）将创建私人静音区域。康涅狄格州斯坦福德。她补充说，这项技术很容易成为一个价值数十亿美元的产业。“仅电子消声器就是一个价值数十亿美元的市场，”她说。不仅仅是真正的信徒对 ANC 系统给予如此高的评价。“这项技术肯定会成为一件大事，”Donaldson, Lufkin & Jeanrettein New York 的分析师 James Alexander 说道，“汽车行业正在努力减轻汽车的重量，而这项技术可以减轻重量。此外，您还可以提高效率。它是赢家。”美国制造商协会发言人唐娜·科斯特洛 (Donna Costlow) 表示，美国工业界每年花费超过 10 亿美元来控制工作场所的噪音。如果职业安全与健康管理局 (OSHA) 制定更严格的噪音控制法规，这个数字可能会飙升，而且 OSHA 官员认为控制噪音是当务之急。
NOISE IS UBIQUITOUS, AND THERE'S SO much of it that it's become one of the nation's top occupational and environmental health problems. In fact, ifcurrent noisecontrol research succeeds, there will be even more of it in the air-and yet the world will be a quieter place because of it. This pacific paradox is promised-indeed, it's already being delivered-by an innova-tive application of the digital arts termed active noise control (ANC). Already ANC systems are quieting industrial air condi-tioning, heating systems, and ventilating fans, and thisyear should see the silencing of grain-loading equipment, refrigerators, and even magnetic resonance imagers (MRIs). By 1993 several luxury cars will be equipped with ANC mufflers, and further down the road some researchers even envision personal headphones-the polar opposite of personal stereos-that would create private zones of silence." We're talking about a technology that could make a significant impact on reducing unwanted, and oftentimes dangerous, noise in the home, on the street, and on the job," says Irene Lebovics, president of NCT Per-sonal Quieting, a division of Noise Cancellation Technologies in Stamford, Connecti-cut. She adds that this technology could easily become a multibillion-dollar industry." Electronic mufflers [alone] is a billiondollar market," she says. And it's not only the true believers who speak this highly of ANC systems." This technology is certainly going to be a big deal," says James Alexander, an analyst at Donaldson, Lufkin & Jeanrettein New York." The auto industry is trying to shave ounces off the weight of a car, and here's a technology that can save pounds. Plus, you improve efficiency. It's a winner." Industry in the United States already spends well over $1 billion a year to control noise in the workplace, according to Donna Costlow, spokeswoman for the National Association of Manufacturers. That figure could skyrocket if the Occupational Safety and Health Administration (OSHA) makes its noise control regulations stricter-and OSHA officials see controlling noise as an urgent priority.