Kind of like the Stuka Siren/Scream[1] sound combined with the doppler effect the German planes used in WW2 to make that wailing sound that increased in frequency as they dive bombed. That sound carried quite a distance and instilled fear in anyone who heard it, which affected more people than those that were bombed. The Tie Fighters in Star Wars used a similar sound.
[1] https://www.youtube.com/watch?v=fhJ8HY24Pb8