Star Wars falls under the science fiction genre, therefore all the sounds are meant to sound mythical and somewhat magical and/or out of this world, and that Is exactly what the sound designers did In these films. I'll briefly explain how they achieved the sounds for various things In the film and how this shaped a surreal world for the audience. By altering the sound of a punch press along with the sound of bicycle chains being dropped on concrete Ben Burnt created the sound of the Imperial Walkers, this gives them a sense of mass and greatness.
The sound of a TIE Fighter is add from an elephant bellow however it was drastically electronically altered to make it sound more futuristic and create a sense of speed, it makes the audience aware of how fast they travel as it swooshes past the screen multiple times. The Woke (Chewable) sounds where constructed of walruses, bears and other animal sounds because the character is animal like and looks somewhat like an adapted bear, the audience can relate to this because its sound is an expectation of the viewers.
RE-Do's voice is a combination of electronically generated sounds, water pipes, whistles, and visualization by Ben Burnt himself, he is a robot and is expected to make little electronic and beeping sounds. The laser blasts was the sound of a hammer being hit onto the wires of a radio tower, this is what people assume lazar guns would sound if the existed because it's very extra-terrestrial. The sound of a Speeder Bike was accomplished by blending together the recorded sounds of a P-5 Mustang airplane, a P-38 Lockheed Interceptor.
The rustle of Luke Jaywalker's landscapers was accomplished by recording the Los Angles Harbor Freeway wrought a vacuum pipe. All these sounds are meant to sound futuristic and it creates this fictional world for the audience where almost everything sounds electronically generated. The lightfaces has to be one of the most integral parts In the Star Wars Series, the sound of it alerts the audience that there Is danger and It makes the viewers nervous because the lightfaces Is only used In battle, the sound of It Is futuristic and it sounds like something form out of space and Is very fitting with the films whole storyline.
Ben Burnt recorded the buzz of television and combined It with he projector motor sound to create the sound of a legislates however, In Dalton the Legislates had to create a sense of movement, he played the recorded sound (buzz/humming) over a speaker In a room and then took another microphone and swayed next to that speaker to create the Illusion of movement from the lightfaces.
In these fighting scenes the volume of the lightfaces sound is extremely loud and the heavy breathing of Dearth Evader created the mood for his character and this mood had a dark undertone which makes the audience aware that he is the antagonist in the story. Saving Private Ryan is more realistic compared to the futuristic/sic-FL sounds of Star Wars.
Steven Spielberg and John Williams made the decision to not add music to the battle scenes as they wanted it to consist of hard sound effects only and to draw the audience in and experience what life on the battlefield is like, the sound was completely dietetic in the battle scenes. The battle scenes are shot from the shaky and claustrophobic point of view of a soldier on the ground. Spielberg got the ambient sound of the beach in the opening scene by recording a room tone of he beach as the battle scene took place, this scene is very loud and overbearing.
There is a part in the opening scene where the camera goes under water and the room tone immediately changes its more quiet and the sound is more muffled and this gives the audience a sense of relief because its more peaceful from the chaos above which is loud and fast paced, however the sound designer, Gary Redstart, wanted the audience to be aware that you cannot hide from danger in the battlefield because he soon adds the muffled sound of bullets traveling under the water, this mound was created by a fly fishing line that was ripped off the surface of river water.
Gary Redstart won an Oscar for Best Effects, Sound Effects Editing in 1998 for Saving Private Ryan. The reviews of Saving Private Ryan compliments Gary Redstart as many ex veterans had seen the film and said that they had captured everything 100% in the film as it was back then on the battlefield. Both these films have been complimented for their tremendous efforts in sound design and how it contributes to the audience not only experiencing the film visually but on an emotional platform too.