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Topic: Colors of noise

Related Topics

Pink noise

Whitening

Brown noise

Frequency spectrum

Random walk

Electronics

Brownian motion

Louis Bachelier

Robert Brown (botanist)

Statistics

White noise

White noise

	Natural Sound & White Noise Machine for Adult and Baby Sleep Problems - SleepWellBaby.com
		White noise machines and other electronic products such as natural sound machines are recommended by doctors for their patients with baby sleep problems, by mothers for their children, by professional people for their offices, and by restless sleepers.
		Several models of white noise machines and white noise generators are available such as the new Marpac Marsona DS-600A featuring white noise sound and the new Marsona 1288A.
		In addition to white noise machines and sound conditioners, we also offer Misting Tabletop Fountains which are perfet for sleep and relaxation.
	www.sleepwellbaby.com (834 words)

	Colors of noise - Wikipedia, the free encyclopedia
		The color names for these different types of sounds are derived from a loose analogy between the spectrum of frequencies of sound wave present in the sound (as shown in the blue diagrams) and the equivalent spectrum of light wave frequencies.
		White noise is a signal (or process) with a flat frequency spectrum in linear space.
		Orange noise is quasi-stationary noise with a finite power spectrum with a finite number of small bands of zero energy dispersed throughout a continuous spectrum.
	en.wikipedia.org /wiki/Colors_of_noise (1381 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.
		In audio, the most common color encountered is 'pink noise': Realized as sound, white noise sounds like the hiss of an untuned FM radio, or the background noise on a cassette tape player.
	www.ee.columbia.edu /~dpwe/noise (1022 words)

	Noise in Man-generated Images and Sound
		Noise is present in all analog devices, but the digital domain is principally noise free.
		Noise can be used to generate small irregular variations to surfaces of objects or to slightly distort textures used in 3D texture mapping to make the world look a bit like our own dirty, imperfect world.
		Noise can be used to generate textures (imitating clouds, natural materials such as wood or stone) or to control the flow of particles used in 3D graphics [2].
	mlab.uiah.fi /~eye/mediaculture/noise.html (1596 words)

	5. NOISE BARRIER MATERIALS AND SURFACE TREATMENTS
		Transparent noise barriers come with their own unique set of engineering, safety, and environmental considerations which are significantly different than most other types of material normally used for noise barrier panels.
		Color of these materials is most often obtained through the pigmentation of the emulsifiers used in the molding process of barrier elements (see Figure 127).
		In addition to providing the desired color in a noise barrier, a concrete stain can provide a degree of protection against the elements as well as be reapplied to areas "tagged" with graffiti.
	www.fhwa.dot.gov /environment/noise/5.htm (12806 words)

	Noise Contouring
		The noise survey was repeated after a period of 6 years.
		The noise difference between the two data sets were computed and plotted as a Difference Map.
		The data was also processed to visualize the magnitude of the noise levels on a frequency by frequency base.
	www.navcon.com /Cartography.htm (274 words)

	Noise/Chaos/Random Numbers/Linear Feedback Shift Register (Site not responding. Last check: )
		Another example of noise is where Texas Instruments uses a noise source for Artifact Mitigation in their white paper on their Andromeda ASIC all-digital approach to projection display.
		Johnson noise: Thermal agitation of electrons in the resistive portions of impedances results in the random movement of charge through those resistances, causing a voltage to appear corresponding to the instantaneous rate of charge of charge (i.e., current) multiplied by the appropriate resistance.
		White noise: In a white noise spectrum, e-sub-n [Spectral noise density] is constant as a function of frequency....
	archive.chipcenter.com /circuitcellar/august99/c89r4.htm;?PRINT=true (3745 words)

	Pink Noise in Comp.DSP
		Hi ALL I need an algorithm to generate pink noise (a drop of 20dB/decade) from white noise (use in simulink) that is suitable for a frequency range of 1 to 100 Hz.
		Hi Do you if there is a toolbox or function to generate noise which is received after a RF transmission (a model of external noise with man-made noise, galactic noise, noise due to attenu...
		The difference between phase noise and spurious noise is the latter is a pure tone while the former is a 'collection' of ton...
	www.dsprelated.com /comp.dsp/keyword/Pink_Noise.php (1046 words)

	Steven Backer's HW #5 - MUSIC 220A @ CCRMA
		The PSD of white noise has a constant roll-off; that is, the slope of it's PSD remains constant as the PSD decreases across a linear range of frequencies.
		Pink noise, on the other hand, is more natural to our ears, as it's PSD rolls off at a constant rate over frequencies heard on a logarithmic scale.
		One popular method for generating 1/f noise is to filter white noise using a “pinking filter” characterized by having a filter gain that rolls of at 3-dB per octave in the frequency domain.
	ccrma-www.stanford.edu /~sbacker/220a/hw5.htm (1659 words)

	Pink Noise (Spectra)
		Unlike white noise, it bears a logarithmic characteristic, and, as such, represents a psychoacoustic equivalent of white noise sweetened for human ears.
		Pink noise is especially appropriate for perceptual measurements, as well as useful in synthesis of audio control and sound.
		It's based on the assumption that noise consists of a sum of several white noise processes that are filtered through first-order low-pass filters having time constants that are successively larger and larger.
	www.embedded.com /2000/0003/0003spectra.htm (2259 words)

	Sound Colors
		Sound Colors are when you associate a tone with a color, Light is just a really fast wave and all waves have a frequency so we will build our theory on that..
		We found a utility called 'Spectra' that shows a colors wavelength and frequency and we built a Thz - Hz converter to show lower octaves of a colors frequency, The frequencies are in terahertz which have to be chopped down in octaves (freq/2) about 30 times...
		Background noise is most likely white when its quiet, A combination of different sounds such as in a city are probably a darker sound.
	www.guitarweek.com /sound-colors/index.php (300 words)

	Noise Measurement Sites
		The description analysis and reporting of flightseeing helicopter and fixed wing noise levels is made difficult by the complexity of human response to sound the myriad of noise metrics that have been developed for describing acoustic impacts.
		Noise, often described as unwanted sound, is known to have several adverse effects on people. From these known adverse effects of noise, criteria have been established to help protect the public health and safety and prevent disruption of certain human activities.
		The meteorological data is an important element in the noise evaluation. Outdoors sound levels decrease as a function of distance from the source, and as a result of wave divergence, atmospheric absorption, and ground attenuation. If sound is radiated from a source in a homogeneous and undisturbed manner, the sound travels as spherical waves.
	www.juneau.lib.ak.us /planpolicy/FlightNoise/BridgeNetProposal.htm (3579 words)

	eLCOSH: Colors Warn About Noise
		Scientists have demonstrated that most construction workers suffer substantial hearing loss, which probably is related to noise on the job, although there is not a federal noise standard for construction.
		Examples of noise levels measured around construction equipment are 102-110 for a jackhammer, 88-102 for a portable saw, and 93-96 for a bulldozer.
		But there can be dozens of pieces of equipment on a work site and the noise levels change, depending on what a machine is doing and how close a worker is to it.
	www.cdc.gov /elcosh/docs/d0600/d000662/d000662.html (589 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)

	Signal noise - Wikipedia, the free encyclopedia
		In science, and especially in physics and telecommunication, noise is fluctuations in and the addition of external factors to the stream of target information (signal) being received at a detector.
		In communications, it may be deliberate as for instance jamming of a radio or TV signal, but in most cases it is assumed to be merely undesired interference with intended operations.
		In some cases a little noise may be considered advantageous, allowing a dithered representation of signals below the minimum strength, or between two quantization levels.
	en.wikipedia.org /wiki/Noise_(physics) (406 words)

	pubs on one-over-f (1/f) noise (Site not responding. Last check: )
		For example, if the distribution is flat, the resulting light is white (so noise with P(f)=constant power spectra is called "white noise") [see also, colors of noise].
		In addition, the noise of the air conditioner is reduced and the comfort of the user is improved.
		SPIE's Proceedings of Fluctuations and Noise 2003 http://spie.org/Conferences/Programs/03/fn/index.cfm?fuseaction=proceedings
	www.nslij-genetics.org /wli/1fnoise (792 words)

	Perforated Metal Panels, Model KNP
		Functional and aesthetically pleasing, the Kinetics' KNP panel is ideal for controlling reverberant noise problems in gymnasiums, natatoriums, and recreation centers.
		The perforated metal face is powder coat painted in a variety of specified colors.
		The Noise Reduction Coefficient (NRC) of.90 (A mounted) means more reverberation control for a given coverage area when compared to many other abuse resistant panels.
	www.kineticsnoise.com /interiors/knp.html (176 words)

	DSP Generation of Pink Noise
		White noise has the same distribution of power for all frequencies, so there is the same amount of power between 0 and 500 Hz, 500 and 1,000 Hz or 20,000 and 20,500 Hz.
		The most obvious use of pink noise is as an audio signal, to be used directly, to be filtered or to be used to modulate something.
		It is possible to conceive of a pink noise generator with "k" rate control of level, upper and lower boundary frequencies and the slopes of those boundaries.
	www.firstpr.com.au /dsp/pink-noise (5641 words)

	noise
		Totally random noise, where not only noise in applied to randomly selected pixels but the noise color is also selected randomly independent of the original pixel color.
		Relative noise, where most of the colors that are added using this setting will resemble the original colors.
		Noise emboss, which applies noise to randomly selected pixels with the embossed intensity.
	www.tanveer.freeservers.com /projects/noise.htm (229 words)

	Joe Maller: Joe's Filters: Joe's Noise
		Joe's Noise is a part of Joe's Filters, a shareware package of utility and image processing tools for Final Cut Pro.
		The filter includes extensive controls for choosing colors to include in the noise mix, scaling the size of noise particles, pre-bluring the noise before applying and a full set of compositing controls for building the final image.
		There are three different noise filters included with Joe's Filters bringing a wide range of noise filtering and adjusting options to Final Cut Pro.
	www.joemaller.com /fcp/joes_noise.shtml (343 words)

	line noise
		additionally, you can decide if you want 'old-school' disturbance (fl/white) or decide the noise colors yourself.
		these two colors determine the color the noise is composed of.
		this controls if the disturbance is noise 1/noise 2 only, or if the noise is purely random colored.
	www.imovieplugins.com /plugs/linenoise.html (192 words)

	PureImage, new generation of wavelet noise reduction and color matching software for digita cameras
		Color Matching and Correction is another half of the story.
		Just load the reference image in Color Match and the advanced matching and optimizing algorithm will match the color and tone of your image to it.
		The color match can be also used to match a series of images taken with different cameras.
	www.mediachance.com /pureimage (754 words)

	Noise, signal to noise ratio, thermal noise, Johnson noise, noise analysis
		Electronic noise man made noise: noise from sources external to the circuit.
		Noise Electrical noise may be said to be the introduction of any unwanted energy, which tend to interfere with the proper reception and reproduction of transmitted signals,
		Random electrical noise: a literature survey thermal or Johnson noise results from the Brownian motion of ionized molecules within a resistance.
	www.educypedia.be /electronics/noise.htm (490 words)

	RIGZONE 2007 Online Media Kit
		GIFs no not suffer from compression artifacts that may alter colors or ad "noise" to your image, but a GIF file is not typically well suited to photographs.
		The JPEG format uses a "lossy" compression technique that can result in bleeding or inaccurate colors and "noise" in the image, but the quality of JPEG images can be adjusted when the files are created.
		The GIF image is precise with exact colors versus the JPEG image, which demonstrates some color inaccuracy and compression problems (errant "fuzzy" colors in white fields).
	www.rigzone.com /advertise/adformat.asp (1034 words)

	purevolume™ \| IN COLORS OF NOISE
		IN COLORS OF NOISE hasn't posted a blog yet.
		IN COLORS OF NOISE hasn't posted any shows yet.
		All songs, lyrics and pictures © IN COLORS OF NOISE.
	www.purevolume.com /incolorsofnoise (127 words)

	jessett.com \| graphic design \| design principles \| choosing color
		Some web safe colors create "noise" (appear to move/blend together) when placed next to each other - try to avoid this
		Modern colors are clean, bright, such as blue and yellow
		Remember to consider color-blind users - red/green color blindness is the most common
	www.jessett.com /web_sites/design/color.shtml (379 words)

	Digital Photography with Photoshop by D'Lynn Waldron
		The color information can be blurred without effecting the sharpness and detail of the image which is contained in the luminosity like a grayscale photograph.
		The two ways to separate the color information from the luminosity information are with the Lab color mode, which lets you see why it is happening, and working with an easy Gaussian Blur formula in RGB.
		Changing the color mode to any of the other options such as CMYK or Index, does permanently change the color information in the file.
	www.dlynnwaldron.com /DigitalPhotoLesson1.html (580 words)

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