I want to build a hardware device running on pd but I just don't know how to physically bridge the gap between hardware and software. I'm not even sure what kind of hardware I need, or how to map pd's inputs and outputs onto physical inputs and outputs.
For example, if I wanted to make the most basic patch, where I just send three inputs straight into three outputs with a 100Hz hi-pass in between, how would I go about putting that into a hardware device that I could use away from my PC? and what kind of hardware would be most suitable for making a real-time audio processor (similar style to a guitar effects pedal)?
Sorry if this is really basic, I'm kinda new to this.