Erikstormtrooper said:

The "use my power, I beg you" force voice is a little confusing. Why would he use that when he is in person? Plus, it's confusing whether he's really saying it, since we don't see his face. All the other times Obi Wan uses a force voice, he's already dead.

You could use this voice in the ruminations scene, when he's sitting in the Jedi council.

In my edit, he said only : "use my knowledge"

The idea of telepathy is just a "bonus", this is not necessary. In my vision, Palpatine used telepathy here to influence Anakin at this very critical moment, to show him another part of his power...Just imagine the way you can feel if you hear someone directly in your head : "use my knowledge ! "

I find this very sutbil.

The voice is really peacefull, we have the feeling that Palpatine knows exactly what he does, he is not scared...

Vader speaks to Luke and Luke to leia through the force (ESB)...As I said in my video, even if Obi-wan is dead and Vader/Luke/leia are related, it's always through the force that they can speak

I really love the sequence when Vader speaks to luke in his mind : "my son...come with me" - it's just excellent, very intense and dramatic. This little sequence is much more intense than 2 hours of Attack of the clones !

so it's just a little glance...

Things go to fast to use the voice in the rumination scene.