antinoise


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antinoise

[‚an·tē′nȯiz]
(acoustics)
Noise that is deliberately created to mimic an existing noise field in antiphase so that the two fields cancel each other, resulting in silence. Also known as antisound.
References in periodicals archive ?
The new technology will also allow automakers to make lighter vehicles as they will not need to add antinoise materials to chassis, they said.
104, 119 (1972) (upholding antinoise ordinance governing area around public schools because law "is narrowly tailored to further [city's] compelling interest in having an undisrupted school session conducive to the student's learning, and does not unnecessarily interfere with First Amendment rights.
The antinoise circuitry can squelch sound at frequencies below roughly 1,200 hertz, reducing the noise to as little as one-eighth of its untreated loudness, says Michael A.
The future may see increased application of these systems, particularly where one antinoise device can "cover" the noise from vibrators and other equipment at the same time.