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active noise control

Noun CEFR C1

Definitions

Technology that uses microphones to detect unwanted sound waves and then generates an opposite, "anti-noise" sound wave (180 degrees out of phase) through speakers, causing both waves to cancel each other out (destructive interference) for a quieter experience, best for steady, low-frequency sounds like engine hums.

Examples

“Near-synonym: noise cancellation”

CEFR level

C1
Advanced
This word is part of the CEFR C1 vocabulary — advanced level.
See all C1 English words →

See also

active participle active photolocation active power active radar active radicalization active rock

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