ENG. Gottfried Hofmann explains in depth the “wiggle effect” in the animation nodes addon for Blender. The algorithm used for it is Perlin Noise and can be found at other places in Blender as well: The clouds texture and the noise modifier for f-curves. 
ITA. Gottfried Hofmann spiega in modo approfondito “wiggle effect” in animation nodes addon per Blender. L’algoritmo utilizzato è Perlin Noise e lo si può ritrovare in differenti utilizzi all’interno di Blender: clouds texture e  noise modifier per f-curves. 


Link: Youtube