The DKOscillator is an animation preset for Adobe After Effects. It uses expressions to control repetitive oscillating properties via sine functions. This allows the user to adjust things like amplitude, frequency, and phase via sliders to create animations much more quickly than by using keyframes. It also makes the animation much easier to adjust. See tutorial below. Shoot me an email if you'd like a copy of this preset as I'm still working out how to host files directly on the site. This is a handy preset to have and I've used it a bunch of times.