How is it that Emmet can understand everyone of Kat's words? Yeah it's just a game, but it still isn't logical. Especially when Radec can't understand Sir Dan's jawless mumbles but Toro and Heihachi can have a conversation in a series of meows and Japanese...Are there any language barriers in this game and if so why does poor old Sir Dan get the short end of the stick?
While I made the joke that Starhawk takes place in the same universe as Tekken there is the possibility that Emmit knows how to speak french, from his younger years or something, just cause it's not established doesn't mean it isn't possible, also Radec and Sir Dan is a completely different case because speaking without a jaw is not it's own language.
As stated before its a made up language