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2. Are Noise-Canceling Headphones Harmful to Your Ears? - AOL

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

   The good news is that noise-canceling headphones can benefit your ears in certain situations. A few of those situations could be blocking out background noise in a busy coffee shop, blaring ...

3. Noise-cancelling headphones - Wikipedia

   en.wikipedia.org/wiki/Noise-cancelling_headphones

   To cancel the lower-frequency portions of the noise, noise-cancelling headphones use active noise control. A microphone captures the targeted ambient sounds, and a small amplifier generates sound waves that are exactly out of phase with the undesired sounds. When the sound pressure of the noise wave is

4. Health effects from noise - Wikipedia

   en.wikipedia.org/wiki/Health_effects_from_noise

   A hearing protection device (HPD) is an ear protection device worn in or over the ears while exposed to hazardous noise to help prevent noise-induced hearing loss. HPDs reduce (not eliminate) the level of the noise entering the ear. HPDs can also protect against other effects of noise exposure such as tinnitus and hyperacusis.

5. Talk:Noise-cancelling headphones - Wikipedia

   en.wikipedia.org/wiki/Talk:Noise-cancelling...

   Also, the noise clearly affects my inner ear, because if I repeatedly switch the headphones on and off, I experience slight dizziness. Tyharvey313 The whole point of noise-cancelling headphones is that, at your eardrum, the noise + antinoise sums to as near zero as the technology will permit.

6. Why do my ears feel clogged? 5 Things you can do right now. - AOL

   www.aol.com/lifestyle/why-ears-feel-clogged-5...

   For example, very curvy ear canals, narrow ear canals, or surgical ears are more prone to earwax buildup. When wax builds up, it causes muffled hearing, tinnitus, or aural fullness (plugged-up ...

7. The New AirPods Can Cancel Noise Without Gumming Up Your Ears

   www.aol.com/airpods-cancel-noise-without-gumming...

   I reviewed Apple's new AirPods 4 true wireless earphones with Active Noise Cancellation. Here's what you need to know about the new headphones.

8. Active noise control - Wikipedia

   en.wikipedia.org/wiki/Active_noise_control

   The wavelength in air of sinusoidal noise at approximately 800 Hz is double the distance of the average person's left ear to the right ear; [1] such a noise coming directly from the front will be easily reduced by an active system but coming from the side will tend to cancel at one ear while being reinforced at the other, making the noise ...

9. Wait—Why Is My Ear Ringing? Audiologists Explain When You ...

   www.aol.com/wait-why-ear-ringing-audiologists...

   "Ear infections can interfere with sound transmission, causing a ringing sensation in the ear," Lewis says. "Infections cause inflammation and fluid buildup, which disturb the auditory system ...