[punarhero]

Well,
There is nothing specific about using parallel. Basically we are going to hard wire digital outputs from our robot controller directly into the parallel, or for that matter serial (if that's easier), port. This way, every time the robot reaches a place where it has to play a new audio track, it will output a unique combination of signals, which we need to be picked up by the serial or parallel port. Is there any way If can contact you, messenger or phone, please let me know since this is a bit urgent.

Thanks a lot