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Topic: Brown noise

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Colors of noise

White noise

Random walk

Brownian motion

Brownian ratchet

Robert Brown (botanist)

Louis Bachelier

Einstein

Osmosis

Statistics

Pink noise

	brown noise@Everything2.com
		Brown noise is a type of noise similar to white noise, but rather than having an equal representation of all frequencies, the lower frequencies are represented more than the higher ones.
		Brown noise is noise that falls off at -6 dB per octave, that is, noise whose amplitude at a given frequency is inversely proportional to the frequency.
		Thus, brown noise is to pink noise as pink noise is to white noise.
	everything2.com /index.pl?node_id=534826 (458 words)

	Brown note - Wikipedia, the free encyclopedia
		The brown note, according to an urban legend, is an infrasonic frequency that causes humans to lose control of their bowels due to resonance.
		The brown note is unrelated to brown noise.
		The brown note was featured in an episode of South Park (3x17: "World Wide Recorder Concert") as a sound that caused the entire earth to empty their bowels uncontrollably.
	en.wikipedia.org /wiki/Brown_note (690 words)

	Noise (Site not responding. Last check: 2007-10-10)
		A noise signal is the opposite of a periodic signal.
		Pink noise is noise in which the energy density at a given frequency is inversely proportional to the frequency.
		Brown noise is noise in which the energy density at a given frequency is inversely proportional to the square of the frequency.
	www.ling.upenn.edu /phonetics/noise.html (160 words)

	...regarding varieties psychoacoustic noise (Site not responding. Last check: 2007-10-10)
		The definition of red noise is not as precise as that of white and pink noise, and the term mostly refers to low-pitched noises used for electonic music.
		Brown Noise: This is a special kind of noise that has a 1/f amplitude distribution - the volume is inversely proportional to pitch.
		Brown noise is also the sound made by a "random walk" which makes the amplitude of a waveform travel up and down at random.
	mv.lycaeum.org /M2/noise_ahf.html (453 words)

	About Colored Noise
		Noise is used to mean a lot of things in engineering, and is an extremely important concept, since a lot of the technical challenges in, say, building a cell phone system, or an ultrasound machine, come from trying to extract a desired information 'signal' from a background of unwanted 'noise'.
		In general, 'noise' can refer to anything that interferes with what we want: it might be a single voice of someone sitting next to us in a movie, but the 'purest' form of noise comes from a totally random source.
		To make an audible noise that sounds more as if it is balanced across the full range of audible frequencies, we have to boost the low range (the 'bass' of a conventional stereo) and cut the high frequency; there is still energy at every frequency, but now the balance is shifted.
	www.ee.columbia.edu /~dpwe/noise (1022 words)

	Fractal Music
		During the next 40 years sound became classified in three main categories based on their mathematical elements: white noise, brown noise, and pink noise.
		This noise is called 1/f, meaning that it is a noise that falls between the two extremes.
		Voss and others used the melodic results of their algorithms in compositions, most notably a composition by Voss that was derived from the annual flood records of the Nile River.
	www.unc.edu /~jimlee/JohnObrienFractalMusic.htm (1955 words)

	Noise Orders (Site not responding. Last check: 2007-10-10)
		In this lively book, David Brown locates jazz music within the broad aesthetic, political, and theoretical upheavals of our time, asserting that modern architecture and urbanism in particular can be strongly influenced and defined by the ways that improvisation is facilitated in jazz.
		Noise Orders identifies how architecture can respond to the inclusive dynamics of extemporaneous movements, variable conceptions of composition, multiple durations, and wide manipulation of resources found in jazz to enable outcomes that far exceed a design’s seeming potential.
		David P. Brown is associate professor of architecture at the University of Illinois at Chicago.
	www.upress.umn.edu /Books/B/brown_noise.html (207 words)

	Ghost2Ghost.Org :: View topic - The Color of Noise
		Black Noise; is noise that has a frequency spectrum of predominantly zero power level over all frequencies except for a few narrow bands or spikes.
		Grey Noise is subjected to a psycho-acoustic equal loudness curve which compensates for the bias of the human ear so that it sounds the same at all frequencies.
		Red Noise; is another name for Brown Noise, and an oceanographic term which describes the ambient noise of distant underwater objects due to the selective absorption of higher frequencies.
	ghost2ghost.org /index.php?name=PNphpBB2&file=viewtopic&t=272&POSTNUKESID=8ed05e6fdb84c1aafb907cdde20aa75f (1001 words)

	Landrum & Brown
		Landrum and Brown has completed the most comprehensive survey of airport noise mitigation programs to date, the results of which are now available as a matrix on the firm’s website for free download.
		The survey was conducted by Landrum and Brown as part of the ongoing Boston Overflight Noise Study.
		The average number of permanent noise monitors used by the surveyed airports as part of their airport noise monitoring and flight tracking systems is 16.
	www.landrum-brown.com /page.asp?id=120 (1071 words)

	Brown Bread noise dampening \| silentpcreview.com (Site not responding. Last check: 2007-10-10)
		One source of noise is the case itself, which often amplifies vibrations from fans and drives.
		Brown Bread is extremely flexible which is very important as it allows it to properly adhere to a contoured panel.
		I found the noise reduction to be identical to that of the metal panel.
	www.silentpcreview.com /article32-page1.html (2071 words)

	Brown Noise (Site not responding. Last check: 2007-10-10)
		Brown noise is a random noise which mimics the signal noise produced by brownian motion.
		To the human ear, brown noise is similar to white noise but at a lower frequency.
		Note: Some people use the term brown noise as a synonym for brown note, a controversial and unproven sound which causes the listener to lose control of their bowels.
	www.mediacollege.com /audio/noise/brown-noise.html (126 words)

	Boise Weekly - Not Your Everyday Newspaper: Noise: Noise: Shawn Brown
		As I talked to Shawn Brown on the phone, he had just finished an in-store performance at a Border's bookstore in Santa Barbara, California, and was in his van on the way to his next show.
		With someone else driving (tour partner and fellow musician, Kai Brown) and miles of highway before him, we had plenty of time to chat about how Brown came to be on the road to success.
		Encouraged by both of them and the audiences who came to see him, Brown started looking at his guitar playing and singing as his future.But knowing what a fickle scene music can be, he decided to continue with his music while also getting a higher education.
	www.boiseweekly.com /gyrobase/Content?oid=oid:155182 (978 words)

	Product Technology Partners Ltd \| The Colors of Noise
		Grey noise (heard this one a couple of times, but can't put my finger on a source) noise subjected to a psychoacoustic equal loudness curve (such as an inverted a-weight curve) over a given range of frequencies, so that it sounds like it is equally loud at all frequencies.
		Brown noise (Jon M. Risch, rbmccammon) power density decreases 6dB per octave with increasing frequency (density proportional to 1/f^2) over a frequency range which does not include DC.
		This fl noise is like the so-called "fl light" with frequencies too high to be preceived as sound, but still capable of affecting you or your surroundings.
	www.ptpart.co.uk /show.php?contentid=71 (989 words)

	Gaussian_Noise (Site not responding. Last check: 2007-10-10)
		es as the random voltage variations in a carbon resistor due to thermal motion, or the so-called Brownian motion discovered by Robert Brown, the English botanist who in 1827 first studied the rapid and apparently random motions of minute particles in a gas as seen through a microscope.
		Other examples occur with some types of radio tubes or semi-conductors where the noise may be amplified to produce a noise generator.
		Note that in all of these cases, it is only the signal's amplitude fluctuating randomly that results in its being classified as Gaussian noise.
	www.sfu.ca /sonic-studio/handbook/Gaussian_Noise.html (220 words)

	noise generation (Site not responding. Last check: 2007-10-10)
		The average spectrum of white noise is flat w.r.t.
		a linear frequency axis, pink is 1/f and brown is 1/f^2.
		(Brown sounds like rushing water and takes its name from Brownian motion.) Question 1: The expected value (mean) of the white noise, E{W}, is 0 by definition.
	shoko.calarts.edu /pipermail/music-dsp/1999-August/002196.html (312 words)

	Pride And Noise, NFL's Brown To Become NASCAR Owner - The Post Chronicle
		Indeed, there aren't many athletes with Brown's class and the fact that he could become a majority owner in a NASCAR team would bolster NASCAR's diversity program and further distance the sport from their "good 'ol boy" stigma.
		Brown said Roush Racing first made overtures to him about three months ago, about the same time Brown realized he couldn't get the deal or situation to continue playing in the NFL and had no desire to uproot his family again during football season.
		Still, the news that Brown was going to venture into the world of NASCAR came as a complete surprise to some of his former teammates.
	www.postchronicle.com /news/sports/article_10074.shtml (1054 words)

	Jaffa's Juicy Bits (Site not responding. Last check: 2007-10-10)
		Apparently a quick burst of the brown noise and people just lose all their bowel control.
		I've heard a little bit about the brown noise and that there have been some studies on using it for military and crowd control.
		Now if this brown noise is real please let me know where i can download it so i can stick it on cd and stick it in my mates car.
	www.jaffacake.net /bensblog.nsf/dx/brown-noise?opendocument&comments (813 words)

	Technological Directions in Music Learning Conference
		1/f noise, or “flicker” noise, is a type of waveform that exhibits a high level of correlation over long time periods and can be described as having a power density spectrum of 1/f^1.
		White noise, therefore, is said to have no “memory.” The third type of noise, brown noise, is highly correlated.
		Voss and Clark hypothesized that since 1/f noise sources contained the same time correlation as the music they had analyzed, it might be possible to use 1/f noise to generate musical compositions that exhibited pleasing musical characteristics.
	www.seriouscomposer.com /TDML/tdml.htm (3000 words)

	Noise News for Week of May 23, 1999
		Instead of measuring noise 500 feet from the property line of the alleged noise offense, as is presently done, officials would measure the distance from the noise source to decide if there is a violation.
		LaRosa said the noise is the worst she has heard since moving to the area two years ago and is loud even inside her home, forcing her to turn up her television volume, reports the Republic.
		LaRosa said the noise is the worst she has heard since moving to the area two years ago and is loud even inside her house, forcing her to turn up her television, reports the Republic.
	www.nonoise.org /news/1999/may23.htm (17295 words)

	Noise Colours
		Certain noises are described by their colour, for example, the term "white noise" is common in audio production and other situations.
		Similar to white noise, but has been filtered to make the sound level appear constant at all frequencies to the human ear.
		An unofficial term which can mean the mid-frequencies of white noise, or the "background noise of the world".
	www.mediacollege.com /audio/noise (193 words)

	Zymic Webmaster Forum > The Brown Noise (Site not responding. Last check: 2007-10-10)
		Aug 20 2005, 06:26 AM After hearing about the brown noise on Southpark, I decided to go do some research and see if this theory of whether you play a note so low that you acually crap yourselves.
		There was one case of human craping, but I think it was made up, anyway, reply here on what you think about the brown noise and if you think the theory of the brown noise is plausible.
		The brown noise has also been tested on Mythbusters, but according to a lot of repsonses, they didn't do everything right.
	www.zymic.com /forum/lofiversion/index.php/t5826.html (423 words)

	Urban Dictionary: Brown Noise
		When I was at that rap concert last night they hit the brown noise and all the niggas in the house shit demselves.
		The brown noise was once used in a episode of South Park.
		The Brown Noise is believed to be 92 cents below the lowest octave of E flat.
	www.urbandictionary.com /define.php?term=Brown+Noise&defid=1585845 (369 words)

	Re: did brown noise work on you ? let me know - Community Server :: Forums
		I am doing a research project on the brown noise and this was helpful to see that it didn't work on anybody.
		Brown Noise: This is a special kind of noise that has a 1/f amplitude
		Brown noise is also the sound made by a "random walk"
	www.skyone.co.uk /SKYONEFORUM/ShowPost.aspx?PostID=11478 (444 words)

	Brown Note - Topic Powered by eve community
		They tested the brown note myth, and got it to work on one of their workers.
		The basic premise of the "brown noise" creator was a Metal tube about 3 - 4 long, with a larger chamber on the back end.
		The way the noise was produced was by placing a spark plug in the larger chamber and using it to ignite a gas.
	community.discovery.com /groupee/forums/a/tpc/f/9801967776/m/2351983018/r/9621967018 (1571 words)

	PSP-Hacks.com / Brown noise, supposed to MAKE YOU SHIT, see how...
		Brown noise is sound that is played at the same frequency in which your bowel vibrates at.
		I think the brown note is at like 6-10HZ so there is know way what so ever that your psp speakers would be able to play it, but you could still conect it up to a stck or somthing but don’t quote me on that.
		If you are referring to the tone that makes you lose bowel control then it’s the brown note not the brown noise, that’s a signal sort of noise, if the brown noise is anything like a pink noise then it just sounds like static on a tv.
	www.psp-hacks.com /forums/post-287261.html (487 words)

	Brown noise - dyestat.com Forums (Site not responding. Last check: 2007-10-10)
		Ok i was just wondering if the Brown Noise is real or fake.....
		Brown noise is real -- all you need for brown noise is a certain type of random noise.
		There was some "brown noise" at my house this morning during my game of battle****s with Behrs.
	www.dyestat.com /forum/showthread.php?t=16880 (338 words)

	Brown Noise - Does it work on you? - CD Freaks Living Room - Club CD Freaks
		There is a difference between 'Brown Noise' and the frequency of a soundwave which will automatically loosen the bowels of someone nearby.
		Brown Noise is noise with a Brownian Motion as discovered by Robert Brown.
		Brown Noise is like White, Pink and Blue noises.
	club.cdfreaks.com /showthread.php?t=148530 (1515 words)

	NG BBS - The Brown Noise: And oTher Noises..
		The brown noise can only be made by a big machine.
		Which is another sound and when it is played it vibrates at the same rate a womens clit does and gives her an orgasm.
		And yes ofcourse there is a brown noise south park episode.
	www.newgrounds.com /bbs/topic.php?id=185625 (512 words)

	freesound :: view sample :: brown noise shower verb.wav
		brown noise fm distortion.wav :: (0:10) :: Brown noise generated with Cool Edit 96....
		brown noise shower verb2.wav :: (0:10) :: Brown noise generated with Cool Edit 96.
		brown noise zigzag.wav :: (0:10) :: Brown noise generated with Cool Edit 96....
	freesound.iua.upf.edu /samplesViewSingle.php?id=3939 (161 words)

	Martial Arts Planet - The Infamous Brown Noise
		Supposedly there is a note that can cause a person to lose control of their bowels and deficate on the spot, its known as the brown noise.
		It has been made famous by a south park episode in which it was used as a weapon for revenge.
		The following sample is supposedly that noise and I was wondering if some daring souls could try it out, though I warn you it may actually work (though it may just be a hoax).
	www.martialartsplanet.com /forums/showthread.php?t=22232 (571 words)

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