Babbled

To utter words indistinctly or unintelligibly; to utter inarticulate sounds

"The men were babbling, so we couldn't make sense of anything."

To talk incoherently; to utter meaningless words.

To talk too much; to chatter; to prattle.

To make a continuous murmuring noise, like shallow water running over stones.

"Hounds are said to babble, or to be babbling, when they are too noisy after having found a good scent."