Category Archives: SK Pang

Divide To Infinity Incorporates ‘Mind Biorhythm Dataspace’ with Daksyba Arts Collective

ABOUT
Daksyba are a collective of audio and visual artists from a range
of creative disciplines, combining voice, percussion, strings, didgeridoo, digital sound and video.

Daksyba Performance @ OV London Festival 2013

“Art is mostly experienced as the aftermath of the creative process. It may be composed, rehearsed, performed or recorded and as such it is but a reflection of that process. Improvisation, as a premise, invites the artist and spectator to share a moment and witness art as a unique event as it emerges, truly in the here and now” – Illi Adato, Artistic Director, Art of the Moment.

Art of The Moment is a 2 day event integrating music, dance and visual arts in fresh new ways and re-examining the relationship between the different medium. It is a celebration of art created in the glorious uncertainty of the here and now, deep in the heart of spontaneous composition.

The festival will feature contributions from the likes of the amazing Oren Marshall (collaborations include Radiohead and Charlie Haden), Maggie Nicols, Anton Mobin, Phil Minton, The Irrepressibles, Matt Black (Ninja Tune, Coldcut), h2dance, Mixmaster Morris and many other leading artists in the field.

It takes place in one of London’s most fascinating art hubs, The Albert in Queen’s Park, and is open to everyone to come and enjoy, explore, experience and get involved.
Live stream here

Daksyba - OV London Festival 2013 Interactive Multisensory Playground @ The Albert

LINKS
http://www.thealbert.org.uk/
http://ovlondon.weebly.com/art-of-the-moment.html
http://ovlondon.weebly.com/
Daksyba blog here.
http://video.twicsy.com/i/zrfDf videohackspace
http://ktokradio.com/?p=1082

Divide To Infinity – Advanced Audiovisual Processing with OpenFrameWorks C++ Libraries

MIDI Maximilian Scope Synth

This program requires the use of a MIDI controller to work – compiled example can be found in the /bin folder. This requires .NET framework 4 (not 4.5) and Visual Studio 2010 libraries to be installed if you are on Windows. The program features a scope adapted from the ofxMaxim example in OpenFrameWorks and comprises of a mono legato triggering synthesizer. Filter cutoff is controlled by momentary on velocity switching and oscillator gate is permanantely on due to having no ADSR and quick and dirty MIDI triggering logic.

Bubblesort:

This program fills an array with random values based on the screen height and iterates through sending the value to a sawtooth oscillator. This implements switch cases – pressing 1 will Bubblesort the array to give a saw glissandi – while pressing 2 will randomise the array data again.

EEG Maximilian:

This was intended to be the main project however due to the nature of how the Emotiv headset examples are organised, I was sadly unable to suitably map the functionality to the way that OpenFrameWorks operates – this code is provided only as a means to see where I am with implementing this. The majority of the code is cut up examples from the emotiv library mixed in with MIDI and Maximilian.

MIDI Example:

I have modified this code slightly from the original supplied by the ofxMidi author Chris O’Shea. I added to the example by listing all MIDI ports by pressing ‘l’ for list and changing midi ports on the fly using a switch case with numeric input for easy testing.

videoPlayerTestModified:

This is a simple test to see how well the Quicktime library works on windows 7 x64, I simply looked into the API and set up a few cases by pressing 1,2,3 and 4 – video play speed, pause and play direction. Sadly this not work with my original video which had a higher bandwidth (had an error code -50 – I could not find the solution anywhere) so this uses the standard ‘fingers’ video.

The link to all of the above source code and materials can be found here.

Unzip these archives into your ‘myApps’ directory in OpenFrameworks.

For more info on OpenFrameWorks and creative coding as an art form, go here.

If you are on Windows, you can execute the debug app in the ‘bin’ folder provided you have all the correct Microsoft C++ Redistributable installed.

Precomplied versions of all projects can be found in their associated /bin folder for easy testing.

Howto: Build a DMX Terminator

DMX512 terminators are easy to build; you need no more than a 5 pin XLR plug, a 120 ohm resistor, and a little time. Holding on to them once you’ve built them is the hard part. Get down to the local DIY store and buy a engraving tool, and engrave the fact that this plug is a terminator, and that it belongs to you clearly on it. You’ll still “lose” them, but at least after a few years you’ll be seeing your terminators around the place, and be able to grab them back!

The only outstanding question is what power the 120R resistor should be? In the photo below, the resistor shown is a quarter watt jobbie, chosen primarily because it looked nice for the photo. Human nature being what it is, the previous set of instructions said use a quarter watt resistor, cos that is what I was looking at whilst writing up the page.