Active Noise Control

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Active Noise Control

The use of energy-consumptive systems to reduce “white” noise by applying specific algorithms and computer-controlled digital processors, to generate sounds opposite that of the undesired noise(s), effectively cancelling their effects.
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The judges were considering an appeal by the UK Government to an earlier Strasbourg court victory on night flying for eight members of the Heathrow antinoise group,HACAN ClearSkies.
HUNDREDS of antinoise protesters marched on Downing Street yesterday in a demonstration against the decision to give the goahead to a fifth terminal at Heathrow Airport.
Antinoise enclosures and central dust extraction (2 x 10" pipes) recommended Torwegge H 604 Series 18,000-26,000 lbs.
The other, Jesus Pica Planas, is representative of most of these men, for creating a number of devices "striking in their uselessness," including an antinoise device for enamored cats and a mousetrap in the form of a guillotine.