new experiment

I have been working with frame differences to create a new means of interaction. The video is a bit glitchy because it is heavy on the system to record and output, but it gets the idea across. (WOW, youtube made it even worse with bad compression!). The information collected by the camera is compared from frame to frame for any differences, if there is a difference, it is output. The video here illustrates what the computer identifies as differences between the frames and this in turn is used to create sound. In this setup is much more event driven. Mixing this with the already existent drone material provides two highly contrasting sound worlds.

The difference selection has a threshold, so there is room for experimentation and gradations between pure events and continuous sound.



Here is a follow up...
Some audio of the most continuous version of abs differencing this frames. I have used 130 and 260 cycles per second on each waveform (cycle, triangle,rectangle and saw). What is interesting from my point is that a rhythmic pattern emerges and then when I get close to the camera and fill the appropriate line, the almost continuous tones emerge. Hence it sounds like moving from almost noise, to almost tones.
AUDIO