The second choice is how I read. I unconsciously assign voices to people. It is one of the things I find most humorous and most disappointing when meeting people from the internet.
More often then not, the voices I've assigned to them are nothing at all like their real voice. It becomes humorous when the voice types match.
I'm not sure I would enjoy speed reading. I love savoring the words on a page too much. Many times I'll reread paragraphs several times for the visual imagery and emotional content in them.
Do you find yourself feeling as though you've missed something when reading a book via speed reading? Yes, you comprehend the text but are you able to emerse yourself into it as well?