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  2. Noise control - Wikipedia

    en.wikipedia.org/wiki/Noise_control

    The most fertile areas for roadway noise mitigation are in urban planning decisions, roadway design, noise barrier design, [14] speed control, surface pavement selection, and truck restrictions. Speed control is effective since the lowest sound emissions arise from vehicles moving smoothly at 30 to 60 kilometers per hour.

  3. Active noise control - Wikipedia

    en.wikipedia.org/wiki/Active_noise_control

    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 approach is appropriate when the vibration of a structure produces unwanted noise by coupling the vibration into the surrounding air or water.

  4. Noise dosimeter - Wikipedia

    en.wikipedia.org/wiki/Noise_dosimeter

    A noise or sound dose is the amount of sound a person is exposed to in a day. The dose is represented by a percentage. A noise dose of 100% means that a person has exceeded the permissible amount of noise. Any noise exposure after the 100% noise dose may damage hearing. The exchange rate is the rate at which exposure accumulates.

  5. Which retail stores are open Christmas Eve 2024? See hours ...

    www.aol.com/retail-stores-open-christmas-eve...

    Customers can use the company's store locator to find specific store hours. Is IKEA open on Christmas Eve? Yes, IKEA stores will be open from 10 a.m. to 6 p.m. on Dec. 24, the company told USA TODAY.

  6. The 7 best invisible hearing aids of 2024, according to ... - AOL

    www.aol.com/lifestyle/best-invisible-hearing...

    Those include noise-cancellation features, directional microphones, rechargeable batteries, fall detection and stream soothing sounds. Ongoing professional support and long trial periods are ...

  7. Health effects from noise - Wikipedia

    en.wikipedia.org/wiki/Health_effects_from_noise

    Environmental noise regulations usually specify a maximum outdoor noise level of 60 to 65 dB(A), while occupational safety organizations recommend that the maximum exposure to noise is 40 hours per week at 85 to 90 dB(A). For every additional 3 dB(A), the maximum exposure time is reduced by a factor 2, e.g. 20 hours per week at 88 dB(A).

  8. I tried an EMF-blocking device to reduce my exposure to ... - AOL

    www.aol.com/finance/tried-emf-blocking-device...

    Since the pandemic, EMF mitigation devices have taken a front row seat in wellness conversations. Somavedic does not block, but rather says it neutralize a 2,800 square feet field around you.

  9. Hearing protection device - Wikipedia

    en.wikipedia.org/wiki/Hearing_protection_device

    The amount of protection from noise can vary based on the physical fit of the device and the skill of the worker. [21] Hearing protection devices with accurate placement (an airtight seal) and/or accurate insertion (deep into the ear canal) will provide the most attenuation of noise. [1]

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