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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. Adaptive noise cancelling - Wikipedia

    en.wikipedia.org/wiki/Adaptive_noise_cancelling

    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 ...

  4. Noise-cancelling headphones - Wikipedia

    en.wikipedia.org/wiki/Noise-cancelling_headphones

    Noise -cancelling headphones alongside a carry case. Noise-cancelling headphones are headphones which suppress unwanted ambient sounds using active noise control. This is distinct from passive headphones which, if they reduce ambient sounds at all, use techniques such as soundproofing . Noise cancellation makes it possible to listen to audio ...

  5. All the best outdoor speakers for your garden or patio - AOL

    www.aol.com/news/8-best-outdoor-speakers-garden...

    Whether you have a big garden or a perfectly petite patio, relishing in the fresh air on a nice, warm day is an unbeatable treat when you can do so on your own home turf. Maybe you like to dine al ...

  6. How noise cancelling headphones work - AOL

    www.aol.com/news/noise-cancelling-headphones...

    Sony WH-1000XM5 $ at Best Buy. Bose QuietComfort Earbuds Series II. Active noise cancellation in earbuds can’t quite compare with in-ear models, but that won’t stop Bose from trying — and ...

  7. List of discontinued Bose headphones - Wikipedia

    en.wikipedia.org/wiki/List_of_discontinued_Bose...

    The "QuietComfort 15" (QC15) over-ear headphones were sold from 2009 until 2015. [32] Compared with its predecessor, the QuietComfort 2, the QC15 had microphones on the inside and outside of each unit and revised foam padding. Like the QuietComfort 2, the QC15 was powered by a single AAA-sized battery. [33]

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