Biomutant - How to Turn Off and Mute The Narrator and the NPC Gibberish Biomutant for the first time, you will find that the narrator has an extremely prominent role. So much so, that instead of giving the animal NPCs voices, the narrator speaks on their behalf. This leaves the critters to just mumble a load of gibberish. Now, if you’re anything like me, this is going to become very annoying very quickly. Thankfully, there is a way that you can turn it off. Here’s how to mute the narrator and the gibberish in Biomutant. 784505 For those that do find either the narrator or gibberish annoying,