Green noise, on the other hand, is one specific frequency – 500 Hz, to be precise – that is thought to sound similar to the sounds we hear outdoors. “Think of the sound of a waterfall ...
Green noise, however, is balanced, sitting snugly in the mid-frequency range (500–1,000 hertz). It mimics natural sounds—think waterfalls, ocean waves, or a breeze through the trees.
Green noise is often considered the most harmonic ... natural sounds like a waterfall), or white noise (ambience created by ...