How to make the dog alone at home not to bark

You can train to simulate a scene where you are not at home, let’s say put it in the living room, you are in other rooms, try to ignore it when it barks, and then show up when it does not bark. It is best not to train for too long at first, 10 minutes is good, slowly you can grow the time. Before you go to give it something that has your scent, or you go when the house is still as usual, play some music or something, and do not say goodbye to the dog when you go, to let the dog think you are still at home, so it can be.