I've been doing some work with creating visual output on oscilloscopes using audio; here are some examples: http://www.youtube.com/watch?v=UJ8-vySqEAI
This is using Max/MSP to read from a buffer of 3d geometry as audio output to an oscilloscope screen. I'm interested in doing transformations on full frames of video as well, like a digital/analog hybrid version of the old Scanimate machines from the 70s: http://www.youtube.com/watch?v=wTO3CKM2Yy0)
But at 44100 samples/second, I don't have the bandwidth to keep a frame of video on the screen at a high enough scan rate without the signal degrading.
What I'd like to do is to use something like MiniDSP to: 1. Load a frame of pixels (monochrome) into a buffer 2. Read out the buffer to modulate the beam's brightness and move it along a raster scan path at high speed (around 60fps ideally) 3. Add LFOs to modulate the scan path to warp the image
This requires a high sampling rate for output, probably higher than normal audio rates for NTSC video, and I know MiniDSP is mainly for audio applications. I'm wondering if you can recommend a solution, ideally one that has friendly features like USB connectivity and C++ compiler, or am I dreaming? Can MiniDSP be overclocked to work at higher rates for output?
Thanks very much for any help.