I personally wouldn’t use this. I don’t know if your point about information being “locked” in written form is even being addressed here. There are so many audio books out there but I personally only really enjoy audio books delivered by the author themselves or someone who can actually capture the nuances in the text. So I think you’ll just end up moving this information from being locked in prose to being locked in sound, unless you can accurately capture the tone, nuances and the context around the whole text.