Other Language - JAVA -- Generate PPM/PWM Signals -- How To

Good Afternoon! I need some help with a personal project, below is what I'm trying to achieve.

What I'd like to do:

1) Capture input from a Joystick or other USB devices.
2) Convert the input into a PPM signal that can be output through a USB cable.
3) Create a USB to Stereo cable adapter.


I'm pretty sure there are libraries I can use to capture the input, so I'm not terribly worried about # 1 yet.

But what I cannot find on google is how to generate a PPM/PWM signal and then output it via USB.

Any guidance would be appreciated.

NOTE: I know there are already COTS products/software available, but I want to do this all on my own for the learning experience.

If you're asking about Java (as your title suggests, though none of your post talks about Java), there is a Java Forum you can post in / ask a moderator to move your thread to. You'll be much more likely to get help there (though I wouldn't hurt to explain in more detail what you're doing, what your environment is and what libraries you have looked at too).

If not, what language are you working with, what environment, tools, libraries, etc.