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2. Active noise control - Wikipedia

   en.wikipedia.org/wiki/Active_noise_control

   Active noise control (ANC), also known as noise cancellation (NC), or active noise reduction (ANR), is a method for reducing unwanted sound by the addition of a second sound specifically designed to cancel the first. The concept was first developed in the late 1930s; later developmental work that began in the 1950s eventually resulted in ...

3. Noise-cancelling headphones - Wikipedia

   en.wikipedia.org/wiki/Noise-cancelling_headphones

   Noise-cancelling headphones are headphones that suppress unwanted ambient sounds using active noise control (ANC). Active noise cancellation makes it possible to listen to audio content without raising the volume excessively. In an aviation environment, noise-cancelling headphones increase the signal-to-noise ratio significantly more than ...

4. List of Bose headphones - Wikipedia

   en.wikipedia.org/wiki/List_of_Bose_headphones

   The "QuietComfort 20" (QC20) and QC20i in-ear headphones were released in 2015 and are the company's first in-ear noise cancelling headphones. [19] It received a 2014 Red Dot Design Award. [20] Also, it received a CNET 's Editors' Choice Award of 4.5/5 points for its active noise-cancelling. [21]

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   What reviewers say 💬. See why more than 15,600 five-star shoppers swear by this deceptively small soundbar. Pros 👍. Fans love the sound quality, comparing it to going to the movies.

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   For instance, the Apple Watch Series 9 (another one of our favorites) is now 23% off at $329. This Apple smartwatch can track your heart rate, monitor your blood oxygen and show guided fitness ...

7. Adaptive noise cancelling - Wikipedia

   en.wikipedia.org/wiki/Adaptive_noise_cancelling

   Adaptive noise cancelling is a signal processing technique that is highly effective in suppressing additive interference or noise corrupting a received target signal at the main or primary sensor in certain common situations where the interference is known and is accessible but unavoidable and where the target signal and the interference are unrelated, that is, uncorrelated [1] [2] [3].