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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Sound cancellation features, inherent bass and microphone input features are driving the growth in the earphone and headset segment.
Flexible thermoacoustic sound projectors: Sonar, thin loudspeakers and sound cancellation
This sound cancellation enables us to sleep through our own snores, whereas a bedfellow's snore or the merest rustle might arouse us.
Seberger, 76, explained the principle this way: "I got the bright idea that if I could go and hold the first sound pulse back in time, and insert it back when the second pulse came along, I'd have sound cancellation and I'd have nothing left but heat.
The Berea, Ohio, company's patented Reflective Sound Cancellation (RSC) technology enhances performance sounds, reduces back pressure, and tunes out annoying droning and booming noises in performance exhaust systems for cars, trucks, SUVs, and boats.
Exhaust Dynamic Sound Technologies, with dynamic sound cancellation (comparable to a noise-canceling headset for tailpipes) and sound generation to remove and/or add selected sound to exhaust systems.