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Arbitrary Audio Output on a Sample-by-Sample Basis
I would like to control my computer's audio output to display images on an oscilloscope. My project would be almost trivial if there were some sort of function (or method, I guess) that treats the sound card digital to analog converter more like the way it's done on an Arduino. That is, if analogWrite(LEFT_SPEAKER, outputValue); or something similar were in a Processing library, everything would be perfect.
As far as I have been able to determine so far, it seems that I need to fill an array and play that array with one of the audio libraries. I would fill the array with whatever I calculate I need for the oscilloscope display and keep it filled as I go.
It seems like this shouldn't be an unusual task, but I haven't been able to find much information (or I have been looking in the wrong places). Has anyone out there come across something like this before and can point me to it?
Thanks for your help.