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  2. Colors of noise - Wikipedia

    en.wikipedia.org/wiki/Colors_of_noise

    Retinal cells are arranged in a blue-noise-like pattern which yields good visual resolution. [ 7 ] Cherenkov radiation is a naturally occurring example of almost perfect blue noise, with the power density growing linearly with frequency over spectrum regions where the permeability of index of refraction of the medium are approximately constant.

  3. White, brown and pink noise machines are going viral for ...

    www.aol.com/news/white-brown-pink-noise-machines...

    Now, other colors of noise like pink and brown are increasingly popular, especially on TikTok. The continuous, ambient sounds are often used to drown out the cacophony of other noises that can ...

  4. 5 Great Sound Machines That Will Transform Your Sleep - AOL

    www.aol.com/5-great-sound-machines-sleeping...

    Dreamegg White Noise Machine. Sometimes the hardest place to find a good night’s sleep is on the road. If you’re a light sleeper who can’t sleep, even on vacation, or a road warrior who ...

  5. Dither - Wikipedia

    en.wikipedia.org/wiki/Dither

    An illustration of dithering. Red and blue are the only colors used but, as the red and blue squares are made smaller, the patch appears magenta. 256 color dithering with IrfanView. Dithering is used in computer graphics to create the illusion of color depth in images on systems with a limited color palette.

  6. White noise machine - Wikipedia

    en.wikipedia.org/wiki/White_noise_machine

    A white noise machine is a device that produces a noise that calms the listener [citation needed], which in many cases sounds like a rushing waterfall or wind blowing through trees, and other serene or nature-like sounds. Often such devices do not produce actual white noise, which has a harsh sound, but pink noise, whose power rolls off at ...

  7. 8 white noise machines for better sleep - AOL

    www.aol.com/news/8-white-noise-machines-better...

    Hatch Restore 2 $ at Amazon. Hatch Restore 2 $ at Target. Hatch Restore 2 $ at Hatch.co. The Hatch Restore 2 is a cross between a sunrise alarm clock and a sound machine that enables you to play ...

  8. Blue Amberol Records - Wikipedia

    en.wikipedia.org/wiki/Blue_Amberol_Records

    The celluloid surface is able to withstand hundreds of playings with only a moderate increase in surface noise if played on a well-maintained machine with a stylus in good condition. [3] Blue Amberols have a maximum playing time of about 4 minutes and 45 seconds and play at the standard post-1902 cylinder speed of 160 rpm.

  9. Can pink noise enhance sleep and memory? Early research ... - AOL

    www.aol.com/news/pink-noise-enhance-sleep-memory...

    You may have heard of white noise used to mask background sounds. The science is new with only a few small studies behind it, but that hasn’t stopped thousands of people from listening to hours ...