https://www.nasa.gov/123160main_cas-skr2-072504.wav https://www.nasa.gov/123163main_cas-skr1-112203.wav https://www.nasa.gov/mission_pages/cassini/main/ Some say its radio waves which were sent to saturn anyway its worth a look https://www.nasa.gov/mission_pages/cassini/media/cassini-072505.html