It's meaningless chatter, or the soothing sound of a brook as it flows over stones
In Babbling Brook, we've captured the true babbling brook sound of water flowing 
over rocks and subtly mixed in our Pure White Noise, creating a ... Babbling (
also called baby talk or twaddling) is a stage in child and a ... babble - utter 
meaningless sounds, like a baby, or utter in an .... running over stones.