The Importance of sound

Though we might think of film as an essentially visual experience, we really cannot afford to underestimate the importance of film sound. A meaningful sound track is often as complicated as the image on the screen. The entire sound track is comprised of five essential ingredients: 

• Music
• Atmospheric sound
• Dialogue
• Sound effects
• Foley

These five tracks must be mixed and balanced so as to produce the necessary emphases which in turn create desired effects. 

G - Media Studies - Sound