Grain Machine Max for Live Instrument

Posted on July 30, 2010 by John CS Keston

The Grain Machine v0.1

Something I have been meaning to do for a while was convert the MaxMSP instrument that I titled the Wavetable Glitch Machine (WTGM) into a Max for Live patch. The WTGM uses a TouchOSC interface running on an iPhone, iPod Touch, or iPad to explore samples using granular techniques as well as a virtual scrub dial with friction modeling. Visit the WTGM tag to read more and view a video of it in operation. I have renamed the instrument Grain Machine for the M4L version.

First I prepared the patch for transfer to M4L. This involved making sure that all of the interface objects were in the main patching window, reorganizing the sub-patchers, and cleaning up a variety of other things that I imagined might interfere with the process. Following that, all that was left was copying and pasting the patch into a Max Instrument, replacing some of the standard Max objects with M4L objects, and building a tidy little presentation mode.

Although I had to rework some of the logic and patch cords, the conversion went surprisingly fast. I expected to be working on this for weeks, but it only took me a matter of hours to get it into working order. There is still some fine tuning to be done, but all the necessary functionality is in place. Here’s an audio example I made with a simple breakbeat loaded into the Grain Machine.

Grain Machine Experiment

Ever Wonder What it Would be Like to Draw Sound?

Posted on July 14, 2010 by John CS Keston

I’m working on a MaxMSP performance patch that uses a Wacom tablet to draw light onto dancers holding light sensitive instruments. Last night we decided to apply sound to the strokes to give the illustrator another way to interact in the piece. Currently the pressure from the pen is translated into the volume and the velocity is translated into pitch. It will need some fine tuning, but I think you can get the idea from the video.

Chromatic Textures Shown at 6X6 #5: Mystery

Posted on July 8, 2010 by John CS Keston

On Wednesday, July 7, 2010 my piece Chromatic Textures was shown at 6X6 #5: Mystery, an exhibition at Ciné Lab in Athens, Georgia. My work was accepted along with five other artists, “…including Denton Crawford’s eyeballs, Aaron Oldenburg’s plunge into asphyxia, and a performance streamed live over the Internet from California.” Here’s my abstract for Chromatic Textures.

Chromatic Textures is a study on the synesthetic nature of our senses of sound and sight. Video input is used to produce generative musical phrases. The visual media is analyzed by the GMS (Gestural Music Sequencer) to create the musical forms in real-time. The software includes adjustable probability distribution maps for the scale and rhythm. Adjusting these settings allows familiar structures to emerge. The settings chosen for this piece cause notes within a particular scale to play more frequently, however, it is still possible for any note within the twelve-tone chromatic system to occur. As a result, dissonant or blue notes can be heard at rare instances throughout the piece.
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Monophonic Step Sequencer Max for Live Device

Posted on June 23, 2010 by John CS Keston

I have converted a Max patch I build into a Max for Live device as an exercise for learning M4L. The original patch is a monophonic step sequencer that I wrote about in Step Sequencer Built in MaxMSP. I ran into some difficulties converting the patch along the way. Although it worked perfectly in Live, for some reason it was causing Live to crash after saving. It was also not storing the values in the Live number boxes, drop-downs, and sliders. The problem went away when I went through the tedious process of recreating the patch rather than copying and pasting my original work. This is a little worrisome since the next conversion will not be so simple (Multitouch Rotary Dial and X-Y Granular Exploration). Here’s an audio example with a little reverb to give you an idea of what it does.

M4L StepSequencer

André Michelle at Flashbelt 2010

Posted on June 17, 2010 by John CS Keston

Yesterday I had the distinct pleasure of introducing André Michelle at the Flashbelt conference in Minneapolis. André is the lead developer of Audiotool. If you’re not familiar with Audiotool it is, in my view, the best web based audio production application I have ever seen. The bulk of André’s presentation involved showing Flash built demos of advanced audio functionality, like granular synthesis, guitar modeling, and using physical modeling to influence sounds and sequences.

Toward the end of his presentation he brought Audiotool into the mix. Audiotool is an application built in Flash. The nearest thing I could compare it to is Reason. The biggest difference is that it runs on the web. This allows for social media opportunities that wouldn’t otherwise be possible. Instruments built into Audiotool, include very convincing emulation of several popular Roland devices, like the TR-808 and the TB-303. It also includes a modular synth called Pulverisateur and a number of effect processors.

Finally, there is an audio track module that allows you to bring in samples stored within a pretty big library provided by Loopmasters. You can’t bring in your own samples yet, but André assured us it was in the works.

André played me a few examples of some of his favorite user generated tracks from Audiotool and I was very impressed with the sound quality and scope. It’s easy to dismiss a web based audio application as a novelty, but the community around it is creating some totally professional sounding stuff that can’t be ignored.