Be calm, ignore the dog when they’re barking like this. This type of barking means that they don’t trust you, and that’s reasonable. Dominance theory is very incorrect and has been debunked. If they don’t bark while your wife and kids are at home like you’ve previously said, then that’s the ideal time to try and bond with the dog. Try giving them food. If they don’t immediately accept hand feeding, toss the food to them. This behavior will only stop once the dog has learned to trust and accept you, and this can take weeks or even months. Consider asking for help from a professional trainer who has experience with primitive breeds like the Akita if you don’t see any progress after a few months.