Is it possible to produce Control Voltage from a wave file (.wav) through a GPIO pin?
Would it then be possible to produce multiple streams of control voltages, from a set of wave files through multiple GPIO pins, in parallel?
I'm thinking about this in the context of a modular synthesizer, where the stream of samples (frames) in each wave file would produce voltages in the range from -2.5 V to +2.5 V (5 Vpp).
I'm completely new to GPIO so any pointers to relevant tutorials and software libraries would be greatly appreciated. I've been googling around but haven't yet stumbled on material relevant to this particular use case.