Well, that would be a god-level acoustic set.
There was a fan explanation (which I maybe saw somewhere in novels), that they sort of listen to some band in the clear like analog radio (in situations where binary-encoded communication is not available), and that working engines and shooting blasters make lots of interference there. Filtered enough to save the pilot's hearing and sanity.
I mean, that's similar to what you said, just better IMHO, cause sounds are not "generated", but derived from signals around.