Teen Male with Female Voice

Thank you for that I'll try that one! I aged up another child in the same family - male and he's talking normally! No female voice there! So I suppose it was just a glitch with that one teen. Maybe he's trying to tell me something? :D Anyway I'm glad it's not a permanent bug. Going to try aging up the female speaking teen and see if if his voice changes. I was having trouble with the game when he aged up and had to repair it twice which fixed a few things so maybe something just broke with him.
Thank you anyway for all your replies they were all helpful and gave me hope for fixing this one sim. :)