What is white noise and what are it's effects?
357496
I've heard (no pun) that white noise is a noise composed of random frequencies, but they follow the bell curve from low to high, with an emphasis in the mid-range.  Supposedly it's quite soothing, like a waterfall.\n\nPink noise, however, is a noise composed of random frequencies evenly distributed from low to high.  From personal experience, it is unpleasant to listen to.  It is useful for calibrating sound systems with a device that reads the levels of each frequency.
28756
I go with acoustic resonance.  The cooling fan(s) in your computer are creating noise.  This is approximately "white" or Gaussian noise -- all frequencies.  But, your room and hollow walls are resonant.  A certain frequency and its harmonics are such that sound waves of these frequencies bounce back and forth between the walls and combine to form standing waves.\n\nHere's more:\nhttp://www.acousticalsolutions.com/education/pdfs/Standing_Wave.pdf
1157262
the wind cause the air particles to rub up agaisnt one another, creating friction.  the friction is the noise that you hear.
616825
There is no cure, tinnitus isn't generally taken seriously enough for a cure to have been invented. What Drs suggest is that you have some 'white noise' wherever you are, that's supposed to counteract it.
989447
The microwave auditory effect, also known as the microwave hearing effect or the Frey effect, consists of audible clicks induced by pulsed/modulated microwave frequencies that are generated directly inside the human head without the need of any receiving electronic device. The effect was first reported by persons working in the vicinity of radar transponders during World War II. These induced sounds are not audible to other nearby people. The microwave auditory effect was later discovered to be inducible with shorter-wavelength portions of the electromagnetic spectrum. During the Cold War era, the American neuroscientist Allan H. Frey studied this phenomenon and was the first to publish (1961) information on the nature of the microwave auditory effect; this effect is therefore also known as the Frey effect.\n\nResearch by NASA in the 1970s showed that this effect occurs as a result of thermal expansion of parts of the human ear around the cochlea, even at low power density. Later, signal modulation was found to produce sounds or words that appeared to originate intracranially. It was studied for its possible use in communications but has not been developed due to the possible hazardous biological effects of microwave radiation. Similar research conducted in the USSR studied its use in non-lethal weaponry.
1184683
Internal noise are like thermal noise, caused by resistance of the channel and white noise, shot noise and some other noise like such as caused dur to circuit. Where as external noise is caused by ll external sources, as u know.
206198
To wake you up.\n\nNormally sound frequencies are heard at different volumes giving a varied dynamic range. (soft to loud)\n\nAdverts have this dynamic range squashed or compressed, so that everything is equally loud. This gets your attention!
113764
Black holes make White noise ... in all seriousness though, it's called "Black hole music" ...\n\nAstronomers were not surprised to find the supermassive black hole making a strong sub-bass sound. Though these greatest known matter sinks are by nature dark and invisible, they create bright and chaotic environments in which many forms of radiation -- from radio waves to visible light to X-rays -- have been recorded. These electromagnetic waves all travel at the speed of light.\n\nSound waves are similar, but they travel far more slowly and are more physical in nature. Sound you hear, for example, can be produced by the visible compression and expansion of a stereo speaker. The waves physically compress the stuff through which they move, be it air, water, or hot interstellar gas.\n\nOther studies have shown that the riotous activity around black holes -- where gas is accelerated to nearly light-speed -- produces many notes that are, all together, much like music. Collectively, the cosmos produce, scientists believe, a cacophonic symphony of inaudible tunes.\n\nMusical production appears to be ubiquitous in Nature. Scientists often call it flicker noise, and it has also been detected in the X-ray outputs of magnetic fields within our solar system. Even Earth hums its own tune. Musical analogies are found in everything from seascapes to brainwaves.
355197
because the foam is white
1045536
not quite sure how to cure it, there are different types of tinnitus.  i have found that "white noise" seems to help especially when falling asleep.  turning on the television - a channel that nothing is broadcast on - somehow that seems to help
962601
It is like SONAR.  A high frequency sound is emitted that bounces off surfaces inside your body.  The bounced back sound is collected and is used to generate a picture of your insides.
1152180
This also happens to my speakers, ever since I moved to my new apartment.  It is radio frequency interference and apparently it is caused by nearby antennas or something like it.  IT can happen to any household speakers and even cell phones.
18204
My vote would have to go to the lack of "sound pollution", the brother of "light pollution".\n\nFor instance, after midnight, most people are tucked into bed and, therefore, no one is awake to make noise. So in essence, those floor boards creak all the time while the house is settling, but you only hear it when there is no other "extra" noise.\n\nOr you could have ghosts! Hope this helps! :O
833011
I have tinnitis. I lost it in the service working around helicopters. It is very annoying being 26. I also have high frequency loss in both ears, 6500K to 8000K. I have a tinnitis masker it makes white noise in my ear, and it is also a hearing aide cause it blocks sound with the "old style hearing aide" in my ear. \n\nThe constant ringing: lets see it makes it hard to go to sleep, some tv's annoy me cause of the increased ringing it causes in my ears. The doctor tells me if i wear my masker religously after 10 to 15 years, sometimes one can train the brain to not hear the ringing and only the white noise. Since i am only in a few years, I cant answer that well at all. Hearing loss is irreversible! Once damage is done it is done. I have dead spots where if people come up from behind me, i can't even hear them talking, which often spooks me and sometimes I have acutally hit them. \nIf you shoot guns a lot, usually you will get it in the left ear more so than the right. Wearing hearing protection for anything over 80 decibles is what keeps ones hearing good. If i dont use ear protection when using the vacuum, it makes my ringing in my ears louder and this takes several days to dissapate down to its "normal" level again.  Getting my teeth cleaned at the dentist with the ultra sonic cleaners.. OUCH! sends my ears into major ringing even with ear plugs... the high vibrations are transferred through my jaws to my ears. Anyways, if you want to talk about this, ya can IM me.. duhibrokeit2000. Wish ya luck, and sorry you have this as well.
540116
Here's some modem sound effects:\nhttp://www.findsounds.com/ISAPI/search.dll?keywords=modem
968219
you hear a noise because someone is making noise for people to laugh. you answered your own question.
83947
This is due to microphone feedback. Look at this article for information on how to eliminate it in Windows: http://www.findarticles.com/p/articles/mi_zdpcm/is_200108/ai_ziff10423