Xbox One consoles are designed to be silent, but sometimes they make a noise when they’re off. This is usually because the console is trying to start up, but it can also happen if the console has been turned off for a long time. Sometimes this noise is just a little bit louder than usual, and other times it’s much louder. It’s hard to say for sure what’s causing the noise, but it might be something that the console is trying to fix or something that the game or application is using. If you can’t find the source of the noise, you can try turning it off and on again or changing some settings on your Xbox One.