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2. Best noise-canceling headphones, according to Consumer Reports

   www.aol.com/news/best-noise-canceling-headphones...

   The Sennheiser PXC 550-II is one of the highest-scoring headphones in our ratings, with superb sound quality and noise canceling. The PXC 550-II is as much as $300 cheaper than many competitors.

3. Noise-cancelling headphones - Wikipedia

   en.wikipedia.org/wiki/Noise-cancelling_headphones

   When the sound pressure of the noise wave is high, the cancelling wave is low (and vice versa). The opposite sound waves collide and are eliminated or "cancelled" (destructive interference). Most noise-cancelling headsets in the consumer market generate the noise-cancelling waveform in real time with analogue technology. In contrast, other ...

4. Noise-canceling microphone - Wikipedia

   en.wikipedia.org/wiki/Noise-canceling_microphone

   The internal electronic circuitry of an active noise-canceling mic attempts to subtract noise signal from the primary microphone. The circuit may employ passive or active noise canceling techniques to filter out the noise, producing an output signal that has a lower noise floor and a higher signal-to-noise ratio.

5. Health effects from noise - Wikipedia

   en.wikipedia.org/wiki/Health_effects_from_noise

   A 2021 systematic review on the effect of occupational exposure to noise on ischemic heart disease (IHD), stroke and hypertension, coordinated by the World Health Organization (WHO) and the International Labour Organization (ILO) located 17 studies that met the inclusion criteria, comprising a total of 534,688 participants (7.47% females) in 11 ...

6. Active noise control - Wikipedia

   en.wikipedia.org/wiki/Active_noise_control

   Sound is captured from the microphone(s) furthest from the mouth (the noise signal(s)) and from the one closest to the mouth (the desired signal). The signals are processed to cancel the noise from the desired signal, producing improved voice sound quality. In some cases, noise can be controlled by employing active vibration control. This ...

7. Best noise-canceling headphones, according to Consumer Reports

   www.aol.com/best-noise-canceling-headphones...

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