I already tweaked and played with the Pitch on the Japanese Version as far as it would let me without affecting the music. I also did a couple more tweaks to try to make it sound a bit more like James Earl Jones. But we also have to remember that Darth Vader is still very young and that his voice didn’t get, “deeper” until later, he has at least 18 years until A New Hope and even then his voice didn’t become, “Traditional Vader deep” until Empire Strikes Back (A Fact that Adywan fixed/pointed out with his A New Hope Revisited) where it stayed the same through Return of the Jedi. Vader also goes through a couple of suits/helmets sometimes getting it repaired and sometimes replacing various pieces he also preforms various tweaks and upgrades on his Armor throughout the years as well.