What is noise cancellation ?

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Rameshreddy Staff asked 2 months ago
Noise Cancellation in Technology in Headphones and Earphones reduces background and surrounding noises. There are two different types of noise cancellation methods.

  • Passive Noise Cancellation: Earphones that are well-designed to block out unwanted noise. Both over-ear headphones and in-ear earphones use this technique to block out background noise because the earbud itself acts as a noise-canceling device.
  • Active Noise Cancellation (ANC): Active Noise Cancellation (ANC) is a technology that uses microphones and speakers to reduce background and surrounding noises in the workplace. In over-ear headphones and costlier earbuds, this is the most common type, and it is also the most well-known.¬† There is also AANC, which employs microphones and speakers that automatically adapt to your surroundings. This is a more sophisticated type of ANC, in which the level of noise cancellation is automatically adjusted in response to the environmental sound.

In addition, some noise cancellation systems provide cancellation up to a certain decibel level of sound. You can view Levels on Noise In decibels to know more.