Monday, January 11, 2016

VGA Synthesis: High Frequency Digital Audio Oscillators as Direct Visual Drivers

Audio output 1, 2 and 3 of an RME FireFace UC interface are used to drive the red, green and blue pins of a VGA signal at 640 x 480 @ 60Hz. Audio oscillators at a sampling rate of 192KHz are used to as a source to drive the signal. A simple Max patch is used to control and output the oscillators. An Arduino is used to generate the horizontal and vertical sync.