Voice problems, some voices on english and others on spanish

[superdavigoku]

Hi everyone, I'm having this problem: I have the vanilla skyrim language on english, and all of the DLCs voices are on spanish. The only strings that I have are the english ones, but the game keeps reading the spanish ones for the DLCs. Does anyone know how to fix this? I've read a lot of solutions but none has worked. Any help is greatly appreciated.