active noise control

名词 n.

英文释义

名词 n.
  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.
    — Near-synonym: noise cancellation

词形变化

active noise controls plural
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