Analysis of Sound - The Dark Knight Rises

• The sequence starts with a loud bang, which signals the film is about to start. 
• As the non-diegetic music continues in the background it gradually starts to get quicker and louder which starts to build tension as the audience anticipates what's about to happen. 
• The music is accompanied by an unexpected sound of glass smashing which is done to scare them audience slightly. 
• The non-diegetic sound at this point is a lot quieter, giving the audience time to absorb everything they've just seen and try to make sense of it. 
• The scene then cuts to visuals of a busy street which is accompanied by diegetic sound, such as a car screeching. This is done to confirm the location ( a busy street).
• The tyre screeching from the car is soon accompanied by a rise in sound. This is done to keep the audience alert.
• Later on in the sequence there is a lot of gunfire and screaming which are typical conventions from a film of this genre. 
• The sounds in this sequence are used to create tension and build suspense. Most of the dramatic sounds are very sudden. I think the producer choose to do this sdo that the audience is constantly alert.