There’s a million ways to approach this. You might wanna start from a creative idea and work out the technology from there, not the other way around. Make sure to check the Jitter tutorials and when you’ve got the basics check Andrew Benson’s Jitter Recipes on the C74 site. That should get you started.
Thanks for replying- It is not audio data it is ascii data which triggers audio at the very end of the chain- I would like to take the data somewhere along the chain (it goes to excel on the way) and use some plugin which creates a moving visual- Is that any clearer?