Tips on How to Stop the Squealing

My LO is 13 months and lately has started squealing and screaming repeatedly at the top of his lungs whenever the mood strikes. He does it when he’s excited, he does it when he’s bored, he does it when he wants out of his high chair or just when he’s having a tantrum. It’s so high pitched it actually hurts my ears and echoes through the house. He’s started doing it at the supermarket and whenever we’re out somewhere and it’s very embarrassing.

Anyone else experiencing this? A lot of the articles I’ve read online just say ‘explain calmly that this is too loud and they need to use their inside voice’. But this won’t work for a 1yr old because he doesn’t have a vocabulary yet and has no idea what an ‘inside voice’ is 🤦🏻‍♀️