How to make the camera focus on the players character and say their line during a conversation?

[DieFeM]

Yes, I understand that, and using the AllowPlayerVoice keyword is the option you're looking for, but mods using XDI merge the keywords in to their mods to avoid having to add XDI.esm as master of their mod, therefore those mods need a configuration file in which is set the form id of the respective keyword.

I've only seen this setup in Fallout 4 - Point Lookout, and I'm not sure how it works for the AllowPlayerVoice since Fallout 4 - Point Lookout doesn't makes use of player voice.

You see the contents:

[XDI]
Plugin=CWPointLookoutFO4.esm
ActivationKeyword=1EAEB
ResultGlobal=1EAEC

I can't find any documentation so, if that's your case, you'll need to ask to the author of XDI (registrator2000) about it.