Skrasoft Dev Blog

The video is to show proof-of-concept for a two-dimensional drawing method of oscillator waveforms.

How does it work?

A pattern is drawn into the window and becomes a “trace.” The oscillator is formed by re-tracing the mouse movements periodically at an audio rate. Since the final audio output can only be one-dimensional, it is taken from the projections onto the x and y axes. These projections are displayed, in addition to basic operations with them.

The example picture shows a straight line drawn from left to right. As this is traced, the x projection (ie the horizontal position) increases from -1 to 1.  The process then jumps back to the beginning and repeats ad nauseum, creating a sawtooth wave in the x projection.

This method of sound generation allows two dimensional graphics functions, such as image rotation, to create novel filtering and processing.

UPDATE: Check here for a standalone application version (Windows only right now)

Another UPDATE: Check here for the Max/MSP files

This entry was posted on Tuesday, August 5th, 2008 at 3:21 pm and is filed under Experimental, Software. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.