Sadly, that’s because the old forum ask a dev section has been taken down and is no longer accessible. Those previous statements indicated that it was likely there would be an option to turn the ship’s sound simulation off entirely and only hear sounds that were actually transmitted via appropriate medium – either impact directly with the hull or sound waves through atmosphere. Your response seems to indicate that’s not going to be possible (turning off the sound emulation). Is that the case?
Adding a preference to turn sound sim on/off is a not really a big deal. We can either do it in the game options or maybe later in a MobiGlas app. But for that sound sim itself needs to be implemented properly first.