If however you listen to this sound you will eventually by able to pick up fragments of conversation. At first you may be able to only make out a few words, but in time you will come to understand whole segments of conversations.
The subject of this talk will be usually meaningless, but if you can mentally break into this communication you may find the voices may choose to respond. Just exactly what is happening here Im not sure, but for those of you who have seen the movie "The Phantom Menace" it may give you a clue.