- published: 22 Jan 2013
- views: 30409277
In signal processing, white noise is a random signal with a constant power spectral density. The term is used, with this or similar meanings, in many scientific and technical disciplines, including physics, acoustic engineering, telecommunications, statistical forecasting, and many more. White noise refers to a statistical model for signals and signal sources, rather than to any specific signal.
In discrete time, white noise is a discrete signal whose samples are regarded as a sequence of serially uncorrelated random variables with zero mean and finite variance; a single realization of white noise is a random shock. Depending on the context, one may also require that the samples be independent and have the same probability distribution (in other words i.i.d is a simplest representative of the white noise). In particular, if each sample has a normal distribution with zero mean, the signal is said to be Gaussian white noise.
The samples of a white noise signal may be sequential in time, or arranged along one or more spatial dimensions. In digital image processing, the pixels of a white noise image are typically arranged in a rectangular grid, and are assumed to be independent random variables with uniform probability distribution over some interval. The concept can be defined also for signals spread over more complicated domains, such as a sphere or a torus.
The term white noise, the 'sh' noise produced by a signal containing all audible frequencies of vibration, is sometimes used as slang (or a neologism) to describe a meaningless commotion or chatter that masks or obliterates underlying information.
The information itself may have characteristics that achieve this effect without the need to introducing a masking layer. A common example of this usage is a politician including more information than needed to mask a point he doesn't want noticed.
In music the term is used for music that is discordant with no melody; disagreeable, harsh or dissonant.
On the January 11, 2005 broadcast of ABC's Good Morning America, Claire Shipman claimed "the political rhetoric on Social Security is white noise" to most Americans.
The novel White Noise by Don DeLillo explores several themes that emerged during the mid-to-late twentieth century. The title is a metaphor pointing to the confluence of all the symptoms of postmodern culture that in their coming-together make it very difficult for an individual to actualize his or her ideas and personality.
White noise is a signal or sound with a flat frequency spectrum.
White noise may also refer to:
In mathematics, the unitary group of degree n, denoted U(n), is the group of n × n unitary matrices, with the group operation that of matrix multiplication. The unitary group is a subgroup of the general linear group GL(n, C). Hyperorthogonal group is an archaic name for the unitary group, especially over finite fields.
In the simple case n = 1, the group U(1) corresponds to the circle group, consisting of all complex numbers with absolute value 1 under multiplication. All the unitary groups contain copies of this group.
The unitary group U(n) is a real Lie group of dimension n2. The Lie algebra of U(n) consists of n × n skew-Hermitian matrices, with the Lie bracket given by the commutator.
The general unitary group (also called the group of unitary similitudes) consists of all matrices A such that A∗A is a nonzero multiple of the identity matrix, and is just the product of the unitary group with the group of all positive multiples of the identity matrix.
Since the determinant of a unitary matrix is a complex number with norm , the determinant gives a group homomorphism
The United Nations (UN) is an intergovernmental organization to promote international co-operation. A replacement for the ineffective League of Nations, the organization was established on 24 October 1945 after World War II in order to prevent another such conflict. At its founding, the UN had 51 member states; there are now 193. The headquarters of the United Nations is in Manhattan, New York City, and experiences extraterritoriality. Further main offices are situated in Geneva, Nairobi and Vienna. The organization is financed by assessed and voluntary contributions from its member states. Its objectives include maintaining international peace and security, promoting human rights, fostering social and economic development, protecting the environment, and providing humanitarian aid in cases of famine, natural disaster, and armed conflict.
During the Second World War, US President Franklin D. Roosevelt initiated talks on a successor agency to the League of Nations, and the United Nations Charter was drafted at a conference in April–June 1945; this charter took effect 24 October 1945, and the UN began operation. The UN's mission to preserve world peace was complicated in its early decades by the Cold War between the US and Soviet Union and their respective allies. The organization participated in major actions in Korea and the Congo, as well as approving the creation of the state of Israel in 1947. The organization's membership grew significantly following widespread decolonization in the 1960s, and by the 1970s its budget for economic and social development programmes far outstripped its spending on peacekeeping. After the end of the Cold War, the UN took on major military and peacekeeping missions across the world with varying degrees of success.
U.N. is a Harlem-based hip hop group founded by Cam'ron in 2009. The group came to formation after Cam'ron had a falling-out with fellow Harlem rapper and co-founder of The Diplomats Jim Jones in 2007.
Cam'ron, Vado, and DJ Drama released a mixtape entitled, "Boss of All Bosses," on August 12, 2009 followed by a second mixtape called, "Boss of All Bosses 2," on January 12, 2010. Both mixtapes were released under The U.N. banner. Additionally, The U.N. released Boss of All Bosses 2.5, an expansion of the first two original mixtapes, released on May 12, 2010. Cam'ron and Vado have since announced future plans for a solo Vado mixtape and album, as well as a U.N. album distributed by Asylum.
Cam'ron and Vado have released their first official U.N. album entitled Cam'ron & The U.N. Presents: "Heat in Here" Vol. 1 on May 25, 2010, manufactured and distributed by Asylum Records. Guest appearances on the album include rappers: Young Chris, Gucci Mane, and Felony Fame.
Additionally, The U.N. released the long awaited "Gunz N' Butta" album on April 19, 2011 through "Diplomatic Man Inc." and E1 Music. It features the singles: "Speakin' in Tungs" and "Hey Muma."
Buy Fan MP3: https://goo.gl/Y292s9 By popular request, I've created a 10 hour fan video for your sleeping pleasure. And this isn't any old fan recording. I auditioned a dozen fans for the role to select the most pleasing sound to make your ears tingle and your eyes grow heavy. Now my aunt will no longer have to pack a window fan in her suitcase every time she travels. (Please note, breeze is not included.) Good night! © Relaxing White Noise LLC, 2012. All rights reserved. Any reproduction or republication of all or part of this video/audio is prohibited.
With the click of a switch, your fan springs to life and you're enveloped in a breeze of soothing white noise. Yup, another 10 hour video from the odd side of YouTube to help you sleep, study or relax. Alright fanatical fans, let's strap on your fancy fanny packs, fan out and dance the fantastic fandango! I really shouldn't be allowed to write these descriptions, lol. *** Relaxing White Noise is the number one destination on YouTube for white noise and nature sounds to help you sleep, study or soothe a baby. Please subscribe to our channel: https://www.youtube.com/relaxingwhitenoise DISCLAIMER: Remember that loud sounds can potentially damage your hearing. When playing one of our videos, if you cannot have a conversation over the sound without raising your voice, the sound may be t...
Buy Fan MP3: https://goo.gl/NmKIVa We've got a classic fan sound for you this week. As usual, only the best sounds make our cut, and we record dozens of fans to find the select few that will best help you sleep. Let the white noise wash over you and help you get much needed rest. Use the white noise sound masking to fall asleep and remain sleeping throughout the night. Enjoy the ambience that calms your mind and blocks out extraneous noises. Sleep well! © Relaxing White Noise LLC, 2016. All rights reserved. Any reproduction or republication of all or part of this video/audio is prohibited.
Some highlights from us trying out Operation White Noise on the TTS (Technical Test Server). New ops like Zofia, Vigil and Dokkaebi. Video has a combination of glitches, random nonsense, and other clips. Hope you guys enjoy the video. Enjoy! TWITTER: https://twitter.com/darkliberator FACEBOOK: http://www.facebook.com/DarkLiberatorZone TWITCH LIVESTREAM: http://www.twitch.tv/darkliberatorzone DISCORD: https://discord.gg/darkliberator WEBSITE: http://www.hvk-gaming.com/ Outro Music: "Call Me Baby" By HeatleyBros: https://www.youtube.com/watch?v=zSSE6wRvmjs
Part 2 of 3 Dan-D Shows us how we can use white noise !
Fan noise and thunderstorm sounds for sleeping, relaxing and meditation. White noise fan sounds with thunder and rain sounds for cooling down and deep relaxation. If you can’t sleep without your bedroom fan on at night and you also love thunderstorms then this video is for you! This relaxing video will create a calming atmosphere for relaxation so that you can fall asleep easier at night. This fan and rainstorm video can also be used as a virtual air conditioner on hot nights. It can trick your mind and body into believing that the temperature is lower, and consequently save you money on electricity bills! We hope you enjoy this virtual fan featuring rain and thunder sounds for sleep. Please share with family and friends if they need help sleeping on warm summer nights or are fan lovers al...
The audio for this can now be download for free (and even re-uploaded to other sites so others may benefit) It is here: http://www.freesound.org/people/hansende/sounds/167897/ Please support me on Patreon: https://www.patreon.com/join/CreativeVideos Why 3 hours? Tranquil nature soundscapes are excellent for relaxing, meditation, insomnia, studying, tinnitus sufferers. Please SUBSCRIBE by clicking here: http://www.youtube.com/subscription_center?add_user=MoneySavingVideos To see my entire playlist click here: http://www.youtube.com/playlist?list=PLI3kQhLH6NvDGxgc0RBzZG3P2OOUVTWqT A fan produces a calming noise similar to white noise. White noise also masks ear ringing (aka tinnitus ). This fan oscillates (rotates) left and right in stereo.
White noise from a fan combines with rain sounds, creating a soothing ambiance to help you sleep, study, focus or relax. People love our rain sounds as well as fan noises and, together, they're better! The resulting combo is great at sound masking so that you're not distracted by noise from tvs, people, the radio, etc. And it's ten hours long so you can use it to sleep all night. Enjoy! For more fan noise videos, check these out: Fan & Rain Sounds: https://www.youtube.com/watch?v=jFeQjqYqShk&t;=25s Box Fan: https://www.youtube.com/watch?v=2DSWX4ReYgQ&t;=36s For just rain sounds, check out these videos: Perfect Rain Sounds: https://www.youtube.com/watch?v=PpC2Bx1cA7k&t;=230s Ambient Rain Sounds: https://www.youtube.com/watch?v=biqyq0PTEUM *** Relaxing White Noise is the number one destinat...
We are going to upload trolls and also upload gameplays that we do feel free to join our parties and play with us. Follow our twitter www.Twitter.com/HashtagTrollers Hope you enjoy the video we will be uploading Random videos=sometimes Wednesday= Prank Call Friday= Troll on Xbox. Please subscribe it would help a lot comment if you think the videos is good enough content.Thank you for watching the video!!! Comedy channels you may like who're similar to us: xXLostInPlaceXx zXNoRegretzzXz KillerKarrit MRLBXv2 StraightUpKnives GeneralMinus YoutubableHD KSIOlajidebt MrTechnicalDifficult MinnesotaBurns GoodGriefing KYR Speedy LUI CALIBRE Eugene Yackle
In signal processing, white noise is a random signal with a constant power spectral density. The term is used, with this or similar meanings, in many scientific and technical disciplines, including physics, acoustic engineering, telecommunications, statistical forecasting, and many more. White noise refers to a statistical model for signals and signal sources, rather than to any specific signal.
In discrete time, white noise is a discrete signal whose samples are regarded as a sequence of serially uncorrelated random variables with zero mean and finite variance; a single realization of white noise is a random shock. Depending on the context, one may also require that the samples be independent and have the same probability distribution (in other words i.i.d is a simplest representative of the white noise). In particular, if each sample has a normal distribution with zero mean, the signal is said to be Gaussian white noise.
The samples of a white noise signal may be sequential in time, or arranged along one or more spatial dimensions. In digital image processing, the pixels of a white noise image are typically arranged in a rectangular grid, and are assumed to be independent random variables with uniform probability distribution over some interval. The concept can be defined also for signals spread over more complicated domains, such as a sphere or a torus.