Many years ago I was sitting in the high mountains of the Trinity Alps (CA) and heard a train coming through. After a few minutes I realized it was the sound of the wind in the trees. I had come home. I was once more in the woods, alone under the night sky; thus began my conscious spiritual journey.
I have learned over the years that God sounds like anyone speaking from their heart and the seeming chaos of life around me. Trying to pick out one sound as that which is God is like going to an Italian buffet and trying to pick out a favorite dish.
I may prefer the silence of meditation, however, all that is heard is the Divine speaking to me. Sometimes I experience a shout and other times a whisper, the question is whether I am able to hear, not whether God is speaking. When I stay conscious to life I am being conscious to the Divine in all that is.