SimpleSide is a freeware volume automation plug-in designed to simulate the distinct pumping effect of sidechain compression. Although that is SimpleSide’s forte, the plugin is capable of some complex volume automation, too. The volume curve can be easily adjusted to any shape using the built-in wave editor. The only other control on the user interface is the timing knob, which goes from 1/32 all the way to 16/1.
Compared to other free plug-ins with similar functionality, SimpleSide feels very responsive, is bug-free, and uses very little CPU. We are very fond of this plug-in as a simple freeware alternative to paid products like KickStart and VolumeShaper.