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

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   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

3. Over 19,000 Amazon Reviewers Are Buzzing About This White ...

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   White Noise Machine. amazon.com. ... This popular pick on Amazon has almost 10,000 reviews and 4.5 stars, for good reason. While they weren't tested in the GH labs, the reviews, ratings and ...

4. Sound level meter - Wikipedia

   en.wikipedia.org/wiki/Sound_level_meter

   A noise dosimeter (American) or noise dosemeter (British) is a specialized sound level meter intended specifically to measure the noise exposure of a person integrated over a period of time; usually to comply with Health and Safety regulations such as the Occupational Safety and Health (OSHA) 29 CFR 1910.95 Occupational Noise Exposure Standard ...

5. Sound reduction index - Wikipedia

   en.wikipedia.org/wiki/Sound_Reduction_Index

   The Sound Reduction Index is expressed in decibels (dB). It is the weighted sound reduction index for a partition or single component only. This is a laboratory-only measurement, which uses knowledge of the relative sizes of the rooms in the test suite, and the reverberation time in the receiving room, and the known level of noise which can pass between the rooms in the suite by other routes ...

6. Dolby noise-reduction system - Wikipedia

   en.wikipedia.org/wiki/Dolby_noise-reduction_system

   A Dolby noise-reduction system, or Dolby NR, is one of a series of noise reduction systems developed by Dolby Laboratories for use in analog audio tape recording. [1] The first was Dolby A, a professional broadband noise reduction system for recording studios that was first demonstrated in 1965, but the best-known is Dolby B (introduced in 1968), a sliding band system for the consumer market ...

7. How to Sign Up for Amazon Prime’s Free Trial—and Save Big ...

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   Amazon Prime Day 2022 is on July 12 and 13. Get all the details about how to take advantage of the deals, including by signing up to become a Prime member (whether that’s through a free trial ...

8. 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.

9. Our Favorite Editor-Recommended Noise-Cancelling ... - AOL

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   Take up to $100 off the best-selling earbuds and over-ear noise-cancelling headphones from Sony, Beats, Bose, and Apple this Amazon Prime Day. Take up to $100 off the best-selling earbuds and over ...