AUDIO / VISUAL FEEDBACK

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Video Feedback: Pixel Behaviors (2013) via Bright Eye Cinema

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Video Feedback No.1 by Ian Bigelow

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Between Dimensions by Nathan Kandus

“Between Dimensions” is an interactive live video feedback fractal generator based on experiments by James Crutchfield. Two 20’ tall by 30’ wide walls suspend 794 independent projection screens. A camera looks at a monitor while the monitor displays what the camera sees. This creates a loop of video feedback, which allows for the formation of structures. When mirrors are added to the monitor, the structures become increasingly complex. The user has the ability to rotate the camera as well as adjust the distance to the monitor. Depending on the rotation angle and distance, different fractals will be made...

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Hypnoglyph

Hypnoglyph is an entrancing kaleidoscopic plaything. Spin the cube with your fingers, double-tap to invert colours. This app works on the principle of video feedback to provide beautiful interactive visuals for your iPhone, iPod Touch or iPad.

source: App Store

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Feedback Loops: How nature gets its rhythms by Anje-Margriet Neutel

While feedback loops are a bummer at band practice, they are essential in nature. What does nature’s feedback look like, and how does it build the resilience of our world? Anje-Margriet Neutel describes some common positive and negative feedback loops, examining how an ecosystem’s many loops come together to make its ‘trademark sound.’

via Ted-Ed

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Façades (2014) by Sabrina Ratté (a contribution for Broadway Augmented)

Façades is a video diptych inspired by the architecture of the Pho Bac Hoa Viet and its near neighbor, the Miso restaurant. The project explores the possibility of using their common architectural detail, the round windows, as the frame for the video image. Therefore, when looking at these windows, the interiors of the restaurants are not revealed as expected in non-augmented reality, but an altered version of their own façades is displayed. By the use of video feedback and animated photographs, short video loops show the restaurants rotating in a seemingly parallel world where the surroundings of the architectural shapes become colorful light.

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Videofeedback was used in trying to create aliens for Stanley Kubrick's film 2001: A Space Odyssey

"We spent an enormous amount of time trying to design extraterrestrials that we could include in the film. I produced quite a few alien effects using video feedback. Video feedback has a strange kind of lifelike quality to it, so I made a video feedback system for creating totally nonhumanoid shapes of pulsating light."

- Douglas Trumbull

source

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Love Letter to Whatever (2014) by J. Robinson

A series of five analog feedback loops, performed live to tape on 1980's consumer video mixers, continuing my exploration into the materiality (color, texture, form) of video. Signals being pulled apart and reformed. And some cats too.

silent.

[robinsoncobras]

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by robinscobras

[design-is-fine]

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TV Dog (1994) by Nam June Paik

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Edited video feedback by Marvin Hayes (2009)

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green piece / memory maze  by Anne Wellmer

green piece / memory maze is a composition by anne wellmer for viola, feedback, laptop and light. The piece explores the acoustic and architectural properties of a performance space, which undergoes a transformation through the enlarged micro-cosmos of the resonating viola strings and the site specific resonances excited by feedback. The title of the piece refers to Les Bains in Brussels, an out-of-use swimming pool building, where the piece was originally conceived.

You can listen to a recording of a live performance here

photo by Ed Jansen

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screen dance (2009) by Mike Hall Studio

A translucent scrim between the performer and the reactor allowed shadows to create negative spaces within which the optical effects could reside.

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edge case (2008) by Mike Hall Studio

Two projection feedback setups were positioned side by side, so that only their extreme edges were connected.

A lot more work and info on his website

[undone-music]

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undone-music:

Music video for Says (2013) by Nils Frahm

Beautifully meditative piano track by Nils Frahm, from the ‘Spaces’ LP, released last fall on Erased Tapes. Video by Romain Assénat & Ana Silva. Improvisation with inks on glass and a video-feedback device, captured live without any post-production.

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greyscape (2010) by Raymond Salvatore Harmond

Improvisationally generated circuit bent video feedback. Pass through analog to digital to analog. The signal is pushed into the audio filter then back out to the video, causing the desaturation of the video encoding (with the exception of a few short bursts of color noise).

Soundtrack by Randy Lee Sutherland

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Marie Kølbæk Iversen at work, at the Danish Art Workshops