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2. 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]

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

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

   Sony WF-1000XM4 $278.00 at Walmart. Sony WF-1000XM4 $279.99 at Best Buy. Sony WF-1000XM4 $278.00 at Abt. Over-Ear, Bluetooth, and Budget-Friendly Anker SoundCore Life Q20

4. 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.

5. Noise-cancelling headphones - Wikipedia

   en.wikipedia.org/wiki/Noise-cancelling_headphones

   Noise-cancelling headphones have been provided for patients in intensive care units to reduce the amount of noise exposure that they face while in a hospital environment. Active noise control technology is shown to have a relationship with sleep disturbance, delirium, and morbidity, therefore bringing up concerns about lowering the levels of ...

6. List of discontinued Bose headphones - Wikipedia

   en.wikipedia.org/wiki/List_of_discontinued_Bose...

   The QC20 model is for Android, Windows and Blackberry devices, while the QC20i is designed for Apple devices and includes volume controls on the remote. [20] The noise cancelling hardware and micro-USB supported rechargeable battery is contained with a box located near the headphone jack, similar to the QuietComfort 1. The earbuds are similar ...

7. Acoustic quieting - Wikipedia

   en.wikipedia.org/wiki/Acoustic_quieting

   Electronic noise control: Electronics, sensors, and computers are also employed to cancel noise by using phase cancellation which matches the sound amplitude with a wave of the opposite polarity. This method employs the use of an active sound generating device, such as a loudspeaker to counteract ambient noise in an area. See noise-canceling ...

8. List of largest companies in South Africa - Wikipedia

   en.wikipedia.org/wiki/List_of_largest_companies...

   The figures are in billions of US dollars and are for the year 2019. All 14 companies from South Africa in the Forbes 2000 are listed. [2] *Despite the company being South African with Head Offices in South Africa, the company is listed as British by the Forbes 2000 ranking due to the entity's registered address in London.

9. Noise barrier - Wikipedia

   en.wikipedia.org/wiki/Noise_barrier

   The sound tube in Melbourne, Australia, designed to reduce roadway noise without detracting from the area's aesthetics. A noise barrier (also called a soundwall, noise wall, sound berm, sound barrier, or acoustical barrier) is an exterior structure designed to protect inhabitants of sensitive land use areas from noise pollution.