You don’t even need the ship to have active acoustics, just that the other ships whizzing by using “insert sci-fi techno babble force here” affect space and matter around them in such a way that energy waves from that sci-fi force moving silently through the vacuum and turn into sound when they interact with the technology/structure of your own ship or spacesuit. Like a microwave generating sparks and a crackling noise across metal foil.
You don’t even need the ship to have active acoustics, just that the other ships whizzing by using “insert sci-fi techno babble force here” affect space and matter around them in such a way that energy waves from that sci-fi force moving silently through the vacuum and turn into sound when they interact with the technology/structure of your own ship or spacesuit. Like a microwave generating sparks and a crackling noise across metal foil.