kinda want something that'll make watery sounds in my room at night that is both, like, an actual physical artifact (so no recorded sound) and doesn't use water
had a pump fountain for a bit, it gets filthy after a while. thought of putting some copper sulfate in the water but I don't wanna poison the cats
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thought maybe I could mechanize a device that was like those tubes filled with beans or whatever, that make a kinda watery sound when you tilt them
a more out there approach, make a white noise generator based on avalanche breakdown or some other source of physical noise, then figure out some analogue effects circuitry that would make it sound oceany
or, I dunno, maybe a totally closed water feature? seems like it'd be too quiet
@Alyx the Internet says a lot of physical processes produce pink noise, so something like that might be a good place to start?
https://mynoise.net/NoiseMachines/waterStreamNoiseGenerator.php doesn't have much in the way of "this is how it works" on the page...