Signs of Spring are making themselves heard in Minneapolis. For example, I recorded the sound of snow quickly melting into a storm drain near the Mississippi river in Minneapolis last night. The temperature was approaching fifty degrees Fahrenheit (ten Centigrade) creating a steady stream of water pouring into a grate adjacent to a cobble stone street. The sound was loud enough to capture my attention as I cycled past it, and nearly drowned (no pun intended) out the ambient noise of traffic and a nearby power plant.
Snow Melting into Storm Drain
I took the idea from the last post a little further and tried a different sample; an already high pitched phrase of Rhodes electric piano. I played the sample in the software sampler, Simpler, higher and higher until it faded from an audible range. I kept going until finally, around eight octaves up, I started hearing strange artifacts from the sample. At this stage I created a MIDI clip with a scale of these sounds, then ran it through compression to bring out some of the more subtle effects, equalization to eliminate any canine-hearing-damaging-frequencies, and some processing to randomize the scale. Here’s what I ended up with. 
I created this sound by resampling the output from