What do u do when ur dog is barking constantly in the house?

When u have a new newborn baby. This is my first baby and i havent gave birth yet but worried because our dog is an indoor dog and he constantly barks at everything! When someone is here, when someone is walking by , our neighbors, dogs, cats, birds, And wind! So when our newborn is here i feel like we are going to have alot of problems keeping our dog quiet during the baby is sleeping. He is already annoying us anyways but probably when the baby comes he will annoy us even louder. Idk what to do with this dog. We cant lock him up in a room forever and keep music on . We cant put him in the back yard because hes an indoor dog.. well we wanted him to be an indoor dog. How do you guys do it when u have a newborn baby and a loud barking dog??? Do u get rid of the dog or throw him/her outside? I just want my baby to sleep thats all. I mean our dog sleeps in the night in his own bathroom and doesnt bark through the night..which is good. But only in the morning/afternoon, evening..🙄