At home.... BOTH my kids... are TRUMPETS. They have really loud, voices. Naturally. They were born that way.
My ears... are sensitive... by the end of the day... my ears are so "full" of noise... I literally go bonkers sometimes.
My kids, have nothing wrong with their ears. And their hearing is fine.
Ironically, my own voice... is just naturally "loud" as well (like my Dad's side of the family)... it drives my Husband nuts... as he comes from a house that was really quiet as library.
Oh, but he likes that I am 'expressive.'
So... opposites.... but still, irritating at times... to each other.
But, my kids are not loudmouths... or deafening... when out, nor is my daughter that way at school. In fact at school... she is on the quiet side.
So my kids CAN modulate their voices... and we teach them that... to the best of their ability per age.... and 'willingness' at home. har har....
And no, I do not punish nor scold for this... this is just the way their voices are, since birth. I see no reason to scold or punish... to my kids voices... I wish they would do Opera!
However, as I said... in public... they are not like this.... and they are not obnoxious outside our home... but my kids don't "shout".... rather they are just loud....
My Husband will sometimes tell me I am "yelling"... but I am not... and my kids will say so too. It is just that my Husband... thinks that anything beyond a hushed voice, is a "yell."
It is all subjective... to the listeners ears as well.
But regardless... my kids are Trumpets! And when I am outside... I can hear them both while they are inside and I am outside getting the mail. I am sure, the neighbors can hear them too.... (egad, oh well).
Your son is 8... I am sure he can learn to modulate his voice... OR... his impulses is just hard to control his voice.
Put it this way... whenever I am upset or excited/happy about something.. I can exclaim about it. My Husband thinks I am "YELLING" or being "ANGRY" and I am NOT. Totally not. I am just real emphatic and expressive when I talk.... and he does not understand that. Yet... after 13 years of marriage. But my Kids on the other hand... totally understand me and my "voice" and they even tell my Husband "Mommy wasn't yelling.... she's just excited... " etc. But for me... I can't just "control" my every single darn word "sound" that comes out of my mouth... who can? I have been this way since I was a child... and having to censor and control my every single every single word and utterance... out of my mouth... can be very very difficult... or, around my Husband, I tend to "not" say everything... that I would.... if he were not around....so that is not good either..
It is difficult to self-"censor...."
But it has not, at all... impeded my making friends or socializing or successes... at all... nor my years in school as a child and adult....
So... it is in the eye of the beholder... and the announcer....
but it is equally irritating... to both.... sides.
But yes... your son CAN learn and should.... about his voice...
all the best,
Susan