The Independent points out the two primary changes, including a drawn out "Noooo!" spoken by Darth Vader in Return of the Jedi and a sound Ben Kenobi makes in Star Wars: A New Hope.
The Independent mentions several online critiques, the most scathing of which claims the alterations, "destroyed the dramatic impact of the most iconic scenes in American film history."
Buzzfeed found two fan videos that sync up the new Blu-Ray audio with the original movie footage.
WATCH those videos below:
The new Star Wars will be released on September 16. Until then, here's a sizzle reel of deleted scenes: