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2. Colors of noise - Wikipedia

   en.wikipedia.org/wiki/Colors_of_noise

   Noise that has a frequency spectrum of predominantly zero power level over all frequencies except for a few narrow bands or spikes. Note: An example of black noise in a facsimile transmission system is the spectrum that might be obtained when scanning a black area in which there are a few random white spots. Thus, in the time domain, a few ...

3. 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.

4. Talk:Colors of noise - Wikipedia

   en.wikipedia.org/wiki/Talk:Colors_of_noise

   The same line of reasoning can be applied for blue light/noise (a domination of high frequency contents) and for black light/noise (absense of energy throughout the whole frequency range, which does not seem as much of a "help" for visualising the nature of the noise - it is kind of obvious anyway).

5. Doctors Say This Type Of Noise Is Best For Deep Sleep - AOL

   www.aol.com/doctors-type-noise-best-deep...

   Turning on your ceiling fan might just do the trick.) Brown noise. Compared to white noise, brown noise has a deeper, almost rumbling tone with no higher frequencies at all. It can sound like ...

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

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

   Brown noise, also called red noise, is more intense at lower frequencies, which produces a deep, rumbling sound, says Harris — think more bass and less static than white noise.

7. How noise cancelling headphones work - AOL

   www.aol.com/noise-cancelling-headphones...

   Shut out the world with the best noise cancelling headphones out there from Apple, Sony and Bose.

8. Soundproofing - Wikipedia

   en.wikipedia.org/wiki/Soundproofing

   A pair of headphones being tested inside an anechoic chamber for soundproofing. Soundproofing is any means of impeding sound propagation.There are several methods employed including increasing the distance between the source and receiver, decoupling, using noise barriers to reflect or absorb the energy of the sound waves, using damping structures such as sound baffles for absorption, or using ...

9. List of animal sounds - Wikipedia

   en.wikipedia.org/wiki/List_of_animal_sounds

   "The Fox (What Does the Fox Say?)" References External links. List of animal sounds to download, listen and use for free. Multilingual list of animal sounds Derek ...