The familiar "quack" attributed to all ducks is usually the female mallard's quacking, though many female dabbling ducks make similar quacking noises. Quacks are not the only sounds in ducks' vocabularies, though. While ducks generally do not sing, they can make a variety of vocalizations, including: Barks, growls, honks, peeps, squeaks and so on…(Melissa Maynz, the Spruce)

I tried to get some of these ”vocalizations” with Orgateq sound, playing low and high…
Enjoy,

Stig

https://youtu.be/mEwEaFfJUm0