[Abraln]

I agree that the type of content is important. I personally experience reading as similar to a campfire story, hearing someone else describe a situation. My brain just isn't good at filling in the details of a scene. I am able to control the voice though. Reading textbooks became way more fun once I started reading them as documentaries narrated by Morgan Freeman! I have found the key is to read no faster than a person could speak the words, otherwise I just hear my own voice talking rapidly. I would guess this would be due to a lack of familiarity with the "templates" for the other voices talking quickly.