If memory serves me right they had a project to set up digital radio in Africa so low-bandwidth that the spectrum would have room for stations in even the most

If memory serves me right they had a project to set up digital radio in Africa so low-bandwidth that the spectrum would have room for stations in even the most niche languages. Languages on the edge of extinction, to help those languages survive. No idea if they ever helped a single language, but they sure weren't without impact. (I suppose the project was one of many related to audio compression, but it was the one I heard a presentation of, to highschool-age youth in the style of "this is what a career in science might look like")