My son talks constantly, too-- if he is by himself he's talking to imaginary friends, with others its constant. Almost-...
He does stop talking if he is watching a movie and playing a video game at the same time-- with headphones on-- so that the noise in his ears is completely intense. Without this intensity, he feels the same way that Rock Rose's son does -- it just makes no sense to him to not have that noise going around.
My husband is the same way -- gotta be noise all the time-- he never outgrew it!
I think trying to teach him to talk/ make noise in a non disruptive way is a good idea-- accepting that his brain works that way, but trying to work with it instead of against it - makes sense.
Thank you for the suggestion of teaching her to humm in a sweet way. I will try that tomorrow!
My 4 year old did that, and when I asked him pointedly why he always is making noise he said my brain tries to go to sleep if I don't. How astute. He's sitting next to me now on his own computer, tunelessly whistling, but it's soft.
I'm sure she feels the same way. She's making audio noise so her brain is alert and functioning. Maybe you could get earplugs, or teach her to humm in a sweet way by humming with her?