Anyone know where/how you add the voice sounds for a new shout? I can't find it anywhere thanks,

That's a very good question... It's apparently attached to the shout itself somewhere, as I tried creating a new shout with the same words of power and spells as an existing shout and it played the magic sounds, but not the voice. Hope it's not hardcoded... I was hoping to do some new shout combinations with existing words of power...

Found it! I think, It's all in some quests lol

Yeah I was right it's all in the quest `VoicePowers`