Forums > MaxMSP

how to make a rain machine?

Apr 04 2010 | 6:49 pm

I need to make a rain machine that can simulate rain falling on to a table that is about the same size as an A2 piece of paper. anyone know any ways i can do this? I tried using a small water pump pumping water up on top of a piece of aluminium with holes in it but the water falls continuously out of the holes as they are too big. any suggestions?

Apr 04 2010 | 7:12 pm

I think you should pour water onto your laptop while it is running MaxMSP, and let the runoff fall onto a piece of paper while you record it into a buffer in MaxMSP.

Apr 04 2010 | 8:03 pm

maybe a serious response?

Apr 04 2010 | 8:40 pm

i didn’t realise it was a serious question. using max/msp?

Apr 04 2010 | 9:04 pm

smaller holes?

Apr 04 2010 | 10:23 pm

Filtering random noise can often be a good starting place for rain-ish sounds. Here is an interesting example of one method for rain synthesis using Pure Data:

You can copy the patch from the picture in max/msp, hip~, lop~ and bp~ are high, low and band-pass filters respectively. Try svf~ instead of each of them as a starting point. I’m not sure what slope the simple PD filters are, probably no more that 2-pole, but either way, svf~ will be a good approximation. And osc~ is equivalent to cycle~.

To take it a step further, you could then synthesize the resonant characteristics of the table your rain is falling on with some parallel resonant filters (reson~).

Apr 05 2010 | 2:07 am

I recall there was an object ‘op.drop’ or similar that did water drop simulation . . .
Or maybe Percolate, RTcmix, STK or similar would be worth a try. . .

Apr 05 2010 | 1:07 pm

cloud computing, lol.

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Forums > MaxMSP