A number of fans and critics expressed difficulty understanding the villain Bane's (Tom Hardy) dialogue clearly in the six-minute prologue to the highly-anticipated film.
According to previous reports, director Christopher Nolan has said that he will only tweak the sound mix slightly rather than completely change it.
A source has now claimed that IMAX theatres have received a new mix for the prologue, in which Bane's dialogue has been "cleaned up".
"A friend of mine who is an IMAX projectionist told me they received a new soundtrack for the Dark Knight Rises prologue," the insider told Collider.
"He said it's now a combo soundtrack with Mission: Impossible - Ghost Protocol, but the cool thing about this is that they've cleaned up the dialogue," the source added. "They've gone in and lowered the background noise of the plane and other things, thus making Bane's dialogue clearer and more understandable.
"He asked some people after they left the movie if they could understand Bane and they all said they had no issue understanding him, and were excited for the movie."
Itzkoff first wrote: "Warner Bros. says 'no truth' to reports of new Dark Knight Rises prologue trailers going out with fixed Bane audio."
However, he then retweeted a message from TheFilmStage, which read: "Viewers have seen both and reporting that it is indeed a much cleaner version. Looks like they just don't want to own up."
The trailer for The Dark Knight Rises recently broke the record for the most downloaded trailer on iTunes.
The Dark Knight Rises opens in cinemas on July 20, 2012.
Watch the trailer for The Dark Knight Rises below: