Tag: video

Posted on

Videosync remix projects

New experiments using Videosync with Ableton Live.

A remix of “Gappa the Triphibian Monster”, 1967 directed by Haruyasu Noguchi. Produced using Ableton Live 12 and Videosync. Editing was done using LosslessCut for slicing and CapCut for editing. The underwater sequence uses the Ableton Audio Effects Rack: “Dawn Shimmers”.

Yet another remix of “Invasion of The Neptune Men” by Koji Ota. Produced with Videosync, Ableton Live, and Lossless Cut. The editing was done entirely in Live. Probably not a great way to do extensive video edits. And there was some trouble with Live 11, but the problems resolved by installing Live 12.

Another tribute to “The Invasion of The Neptune Men” by Koji Ota Produced with Videosync in Ableton Live. This was my first effort with Videosync. I tried to edit the video based on the sounds of the clips.

Posted on

Capturing App/Screen video with Syphon and NDI

How to get video from applications, like a web browser, into Syphon.

This example shows how to get a Youtube video from Firefox into Max/MSP Vizzie.

  • Use NDI Scan Converter (From NDI Tools https://ndi.video/tools/ ) and select Firefox from the Capture menu
  • Use NDISyphon to convert the NDI stream to Syphon. Use virtual audio routing (eg., black hole) for system audio, or route audio directly into Max.

  • In Max, use the Syphon client from the package manager to receive video. Here is an example using Vizzie abstractions described in previous posts:

notes:

NDI scan converter allows screen capture from apps and broadcasts in NDI format over the LAN. Then NDISyphon app converts NDI stream into Syphon. For youtube, use theatre mode to fill the window – full screen doesn’t really work. see this link: https://support.telestream.net/s/article/Wirecast-Remote-Computer-Screen-Capture-with-NDI-macOS

Posted on

Recording Ableton Videosync output

Video recording options for Videosync in Ableton Live

Syphon Recorder.

https://syphon.github.io/recorder

  1. In Videosync preferences, set master Syphon out.
  2. In syphonrecorder set Videosync master as input.
  3. In syphonrecorder set virtual audio as input (eg., blackhole 2ch)
  4. In Ableton, set blackhole 2ch as audio output (or make a multioutput device in audoMidiSetup, combining headphones and blackhole.)

Vizzie Recorder.

(see this post about Vizzie Syphon abstractions https://reactivemusic.net/wp-admin/post.php?post=20896&action=edit)

  1. setup a Syphon client in Max
  2. Use abstractions to bring video into Vizzie. and use Vizzie recorder object.
  3. Route audio as described above.

Screenflick (or other screen recording software)

  1. Set screenflick to overlay videosync output window in Ableton Live
  2. Route audio as described above.
Posted on

Max/MSP Vizzie abstractions for Syphon

Vizzie objects can connect directly to Syphon clients and servers.

(work in progress – not available yet)

Syphon video as input to Vizzie

vizziesyphonclient.maxpat that gets syphon into vizzie. look at vizzieexamplewithsyphon.maxpat to see how it works.

Syphon as output from Vizzie

Use vizziesyphonserver.maxpat. Example: vizzieexamplewithsyphonserver.maxpat

(local files in maxteachingexamples)

Posted on

Analog video synthesis

Generative art in motion.

ck

https://vimeo.com/cskonopka

By Christopher Konopka

Background

In the past year, Chris has published nearly 2500 improvised video pieces.

13522998_945476555985_3590046569317439705_o

You may be familiar with analog modular audio synthesis. The hardware to produce video looks nearly identical – a maze of patch cords and dials.

Television

13709835_10154366721684231_6046749253184273850_n

Analog video is television. A CRT (cathode ray tube) resynthesizes video information by demodulating signals from a camera. Vintage televisions have dials to adjust color and vertical sync. When you turn the dials you are synthesizing analog video. Distortion, filtering, and feedback – either at the source (camera) or the destination (tv screen) – offer up an infinite variety of images.

Analog vs. Digital

Today all media is digital. Like the screen you are looking at. The difference with analog is in how it’s produced. Boundaries are less definite. Lines curve. Colors waver. Feedback looks like flames. Every frame is a painting.

https://vimeo.com/172035463

Patterns

Images can be generated electronically using modules – without a camera.

Filters

Like with audio sampling, anything is a source. Movies, Youtube, live television, even Felix the Cat.

Feedback

When you aim a guitar at an amplifier it screams. Tilt it away slightly and the screaming subsides. In between there’s sweet spot. The same is true with cameras and screens. Feedback results when output is mixed with input.

Radio

Analog shortwave radio signals are distorted by the atmosphere in a manner similar to video filtering.

A studio in Bethel, Maine.

image1

An improvised collaboration between Chris and Tom Zicarelli using shortwave radio processed with audio effects.

Live Performance

Gem

https://www.instagram.com/p/BImQwOGBveV/?taken-by=cskonopka

A recent screen test at the Gem Theatre in Bethel, Maine. Source material is a time lapse film of a glacier installation – produced at the same theatre – by Wade Kavanaugh and Steven Nguyen. https://www.youtube.com/watch?v=6c36Y-Dcj30  The film was re-synthesized using analog video and feedback. Soundtrack by Tom Zicarelli.

https://www.instagram.com/p/BImRSzHBOLL/?taken-by=cskonopka

Big screen equals mind bending experience.

Note: previous clip excerpted from this 15 minute jam: https://vimeo.com/177843310

TAL

The patterns in this clip appear to be three dimensional. They are not.

From a show that happened somewhere in the known universe:

Alto

Improvised analog video with the band “Alto”. Patterns reminiscent of magical textiles.

More about analog video synthesis

 

Posted on

ep-426 Interactive Video – Spring 2015 week 14

Jitter programming

Developing with javascript, gen, and external objects.

Javascript

Jitter in javascript: https://reactivemusic.net/?p=19218

Gen

Jitter gen: https://reactivemusic.net/?p=19205

Particles

https://reactivemusic.net/?p=19194

Jitter objects

Writing Jitter external objects: https://reactivemusic.net/?p=19208

Revisiting Vizzie

Even after all that, Vizzie is my first choice when starting a project or building a prototype.

Vine analyzer example:

https://github.com/tkzic/max-projects/tree/master/maxvine

patch: maxvine-analyzer.maxpat (requires other files in the maxvine folder)

More analog video

media converter demo: https://reactivemusic.net/?p=19173

Miscellaneous

And topics that didn’t get covered.

Algorithmic video and data visualization
Projection mapping

Cornerpin: https://reactivemusic.net/?p=11838

Lighting control systems

DMX: Andrew Pask tutorial: https://reactivemusic.net/?p=18266

Development tools
Miscellaneous

60 minutes of whales: https://reactivemusic.net/?p=8433

Assignment

Do something.