SSE How do I clone a voicetype?

[SeraVerte]

I want to create a new voicetype called FemaleEvenTonedJapan that uses voice files from the Japanese version of the game.

I then want to assign that voicetype to specific npcs.

 

I've created the voiceType in the creation kit and assigned it to the npcs.

I've copied the Japanese voice files, in their correct file structure, into the voices directory and named it FemaleEvenTonedJapan.

 

That doesn't seem to work though. What steps am I missing?