I think one of the most pleasant surprises of The Dark Knight Rises was that Christopher Nolan finally relented and allowed Bane’s lines to be redubbed. He originally said being hard to understand was “part of the character,” but I’m glad someone made him see the light. Even great directors aren’t perfect.
This is a side-by-side comparison of lines from the IMAX prologue shown before the voice was changed, and the actual film. Both aren’t the best quality, but you can easily tell the difference. Not only is he more understandable, but they added that musical-like quality to his voice that made his character so memorable. Hard to imagine he, or the film, would have been nearly as good without this change. I didn’t read one review which talked about Bane being hard to understand, but you can be there would have been a million if they hadn’t altered the voice the way they did.