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2. Active noise control - Wikipedia

   en.wikipedia.org/wiki/Active_noise_control

   Noise control is an active or passive means of reducing sound emissions, often for personal comfort, environmental considerations, or legal compliance. Active noise control is sound reduction using a power source. Passive noise control is sound reduction by noise-isolating materials such as insulation, sound-absorbing tiles, or a muffler rather ...

3. Are deaf drivers under any restrictions? Here’s what states ...

   www.aol.com/news/deaf-drivers-under-restrictions...

   One concluded that deaf drivers were safer than hearing drivers, one concluded that deaf and hearing female drivers performed similarly but deaf male drivers crashed more frequently, and the other ...

4. Health effects from noise - Wikipedia

   en.wikipedia.org/wiki/Health_effects_from_noise

   Elevated workplace or environmental noise can cause hearing impairment, tinnitus, hypertension, ischemic heart disease, annoyance, and sleep disturbance. [3] [4] Changes in the immune system and birth defects have been also attributed to noise exposure. [5] Although age-related health effects ( presbycusis) occur naturally with age, [6] in many ...

5. 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. Applications. Call center headsets

6. Why are Fresno restaurants so loud? The reason some people ...

   www.aol.com/news/why-fresno-restaurants-loud...

   Studies show. Scientists have studied sound levels and their affect on eating and drinking. One study found that people chew faster when fast-tempo music is played. Another — in a bar, not a ...

7. A Neurologist Explains Why You Can’t Get That Song Out of ...

   www.aol.com/neurologist-explains-why-t-song...

   An earworm happens when you have the “inability to dislodge a song and prevent it from repeating itself” in your head, explains Steven Gordon, M.D ., neurologist at UC Health and assistant ...