active noise cancellation

What is [ANC]?

ANC is often featured alongside ENC in blogs and videos about earphones and microphones, but ANC and ENC are not the same thing.

Active Noise Cancellation

Active Noise Cancellation (ANC) works by using a microphone to pick up external sounds and then creating opposing sound waves to cancel unwanted noise. Just like a superhero has special powers to defeat his enemies. ANC is most effective at canceling out low-frequency sounds, such as the hum of an airplane engine or the rumble of a train.

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