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

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

    Active noise cancellation is generally effective, but some frequencies or sounds are easier to counteract than others. A prime example is steady-state or low-frequency noise as it is relatively ...

  3. The best wireless headphones for seniors in 2025 - AOL

    www.aol.com/lifestyle/best-wireless-headphones...

    Active Noise Canceling (ANC): The hot headphone feature of the 21st century is active noise canceling, otherwise known as ANC. Flip a switch (or press a button) and the earpieces magically reduce ...

  4. Safe listening - Wikipedia

    en.wikipedia.org/wiki/Safe_listening

    Noise-cancelling headphones and sound-isolating earphones can help one avoid turning the volume up to overcome loud background noise. Sound measurement apps can help one find out how loud sounds are. If not measuring the sound levels, a good rule of thumb is that sounds are potentially hazardous if it is necessary to speak in a raised voice to ...

  5. Best noise-canceling headphones, according to Consumer ... - AOL

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

    These headphones also deliver modern noise-canceling features, including adjustable levels of sound blocking and a monitor mode that pipes in outside sound when you want to hear it.

  6. Noise-cancelling headphones - Wikipedia

    en.wikipedia.org/wiki/Noise-cancelling_headphones

    Simplified graphical depiction of active noise reduction. 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.

  7. 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 ...

  8. Health effects from noise - Wikipedia

    en.wikipedia.org/wiki/Health_effects_from_noise

    Traffic noise has several negative effects, including increased risk for coronary artery disease, with night-time exposure to noise possibly more harmful than day-time exposure. [2] It has also been shown to increase blood pressure in individuals within the surrounding residential areas, with railways causing the greatest cardiovascular effects.

  9. The 7 best OTC hearing aids for seniors, according to ... - AOL

    www.aol.com/lifestyle/the-7-best-otc-hearing...

    The 7 best OTC hearing aids for seniors, according to audiologist and medical professionals ... noise exposure, exposure to therapeutic drugs that have ototoxic side effects and chronic other ...

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