"Straight away from the trailers we could tell we were in for a questionable time when Bane spoke and the final film version is somehow seemingly worse. We get a kind of muted, breathy, quasi-Scottish accent as Bane’s eyes stare blankly at us and his comical voice issues out from behind his muffling mask. He speaks very early on in the film and my palm immediately met my face – it’s bad. Far worse than Batman’s growling ever was. I’m not sure what he said 35% of the time."
— 11 Things That Didn’t Work in ‘The Dark Knight Rises’ | Film School Rejects