Indeed, when I was at MIT there was a exhibit in the Doc Edgerton hall that did exactly this with florescent food coloring for the water and a strobe. You could turn a dial and change the speed of the strobe, and the 'drops' would change direction into or out of the spouts. There were two spouts with streams hitting each other. A very cool effect.
There might be a little bit more to it than that. I think the vibrating subwoofer actually nudges the droplets and shapes them, controls the flow and the way each individual droplet breaks off.
Yes I also think that if you can use strobe light and have the possibility to adjust the strobe frequency you don't even need a subwoofer, but for the proper "matrix-like" effect a lot of "frames per second" are needed and the camera gives certainly nicer result. In my opinion his setup was really quite optimal for what he presented.
See my comment above. You actually need the sound to create vibrations in the stream of water that breaks it up into drops. The coolest thing is that there really are drops here, it's not an optical illusion.
I'm not quite sure I'm following you. You don't need the sound to break the water into drops. You can do it without the sound by just adjusting the flow rate. I've done this.
Are you just saying that by using sound, you can break up an even faster stream, one that would ordinarily be too fast to break up on its own?
I wonder if there's any way to make this into a decorative fixture? A strobe would be annoying, and a large LCD shutter in front would be expensive and spoil the effect somewhat. Any ideas?
Still, a clever idea to simply use a sub-woofer to kick the drops. I like it.