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  2. Absolute threshold of hearing - Wikipedia

    en.wikipedia.org/wiki/Absolute_threshold_of_hearing

    Absolute threshold of hearing. The absolute threshold of hearing ( ATH ), also known as the absolute hearing threshold or auditory threshold, is the minimum sound level of a pure tone that an average human ear with normal hearing can hear with no other sound present. The absolute threshold relates to the sound that can just be heard by the ...

  3. Audio system measurements - Wikipedia

    en.wikipedia.org/wiki/Audio_system_measurements

    Audio system measurements are a means of quantifying system performance. These measurements are made for several purposes. Designers take measurements so that they can specify the performance of a piece of equipment. Maintenance engineers make them to ensure equipment is still working to specification, or to ensure that the cumulative defects ...

  4. Audio equipment testing - Wikipedia

    en.wikipedia.org/wiki/Audio_equipment_testing

    Audio equipment testing. Audio equipment testing is the measurement of audio quality through objective and/or subjective means. The results of such tests are published in journals, magazines, whitepapers, websites, and in other media. Those who test and evaluate equipment can be roughly divided into two groups: "Objectivists", who believe that ...

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  6. This 66-year-old works 11-hour days, has no savings, and ...

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    Cost-of-living in America is still out of control — use these 3 'real assets' to protect your wealth today, ... O’Connor sold her home and purchased a smaller one, which she now shares with ...

  7. Noise-cancelling headphones - Wikipedia

    en.wikipedia.org/wiki/Noise-cancelling_headphones

    Noise -cancelling headphones alongside a carry case. Noise-cancelling headphones are headphones which suppress unwanted ambient sounds using active noise control. This is distinct from passive headphones which, if they reduce ambient sounds at all, use techniques such as soundproofing . Noise cancellation makes it possible to listen to audio ...

  8. What's Wrong With Home Depot Today? - AOL

    www.aol.com/news/2013-08-14-whats-wrong-with...

    Shares of Home Depot have taken a trip to the. Although we don't believe in timing the market or panicking over daily movements, we do like to keep an eye on market changes -- just in case they're ...

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