u/Wiseildman

At 7:15 in Steely Dan's Aja there's this awesome ear candy sound that sounds like water trickling. I think it's some kind of a synth with a filter and reverb but not quite sure. I've heard a similiar sound in some other songs such as Daft Punk's Motherboard at 3:11 onwards.

Any idea what this sound is called and how it is be made?