active noise control
active noise control noun: 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.

Noun
active noise control (plural active noise controls)
- 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
- Synonyms:
- active noise cancellation, noise cancellation
Synonyms of active noise control
Forms of active noise control
| plural | active noise controls |
|---|
Questions about active noise control
- What does active noise control mean?
- Active noise control means 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.
- What part of speech is active noise control?
- Active noise control is a noun.
- What is the plural of active noise control?
- The plural of active noise control is active noise controls.
Words near active noise control in the dictionary
Source and license
Adapted from Wiktionary: active noise control (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.
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Cite this entry: “active noise control.” Word.ws, https://word.ws/active_noise_control. Based on Wiktionary, CC BY-SA 4.0.
