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2. Noise-canceling microphone - Wikipedia

   en.wikipedia.org/wiki/Noise-canceling_microphone

   A second mic receives ambient noise. In a noisy environment, both microphones receive noise at a similar level, but the primary mic receives the desired sounds more strongly. Thus if one signal is subtracted from the other (in the simplest sense, by connecting the microphones out of phase) much of the noise is canceled while the desired sound ...

3. 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 ...

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. 20+ Amazing Walmart deals that are still available - AOL

   www.aol.com/lifestyle/walmart-deals-prime-day...

   Bluetooth Vinyl Retro Record Player with External Speakers. $99 $120. Save $21. ... Right now, get an annual Walmart+ membership for 50% off! ... Starting today, Walmart is offering 50% off ...

6. Walmart 2023 Black Friday Deals You Shouldn’t Pass Up - AOL

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   “Starting Nov. 22, Walmart is offering the Beats Studio3 Wireless Noise Canceling Headphones for $99. For under $100, you can get a great gift for the music lover in your life with a 4.6 out of ...

7. 30+ of the best Walmart deals under $50 to shop right now - AOL

   www.aol.com/lifestyle/best-walmart-deals-under...

   Crest 3D Whitestrips Professional Effects Teeth Whitening Strips Kit, 20 Treatments. $33 $38 Save $5. Whiten your teeth up to 18 levels brighter with these easy-to-use Crest Whitestrips. They act ...

8. Audio headset - Wikipedia

   en.wikipedia.org/wiki/Audio_headset

   Headsets are available in single-earpiece and double-earpiece designs. Double-earpiece headsets may support stereo sound or use the same monaural audio channel for both ears. Single-earpiece headsets free up one ear, allowing better awareness of surroundings. Telephone headsets are monaural, even for double-earpiece designs, because telephone ...

9. Adaptive feedback cancellation - Wikipedia

   en.wikipedia.org/wiki/Adaptive_feedback_cancellation

   Adaptive feedback cancellation. Adaptive feedback cancellation is a common method of cancelling audio feedback in a variety of electro-acoustic systems such as digital hearing aids. The time varying acoustic feedback leakage paths can only be eliminated with adaptive feedback cancellation. When an electro-acoustic system with an adaptive ...