I wouldn't expect human ears to be able to pick it up, because human ears would have far more serious problems just being exposed to the vacuum of space. But if

I wouldn't expect human ears to be able to pick it up, because human ears would have far more serious problems just being exposed to the vacuum of space. But if it's possible to make sensors that can detect this sound, and devices that can generate it, and communication between the two would be accurate and really this fast, well, that would certainly be interesting. Not sure if it would actually be useful, because I'm sure radio waves would be much more practical, but sound in space is a fascinating idea.