English Explanatory Dictionary

active noise control

English dictionary entry

Meanings

noun
  1. 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.

Word forms

active noise control active noise controls

Synonyms

active noise cancellation noise cancellation

Related words

noise reduction
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