The document discusses different types of sounds used in film and their dramatic effects. It defines diegetic sound as coming from within the scene, like dialogue or ambient noise, while non-diegetic sound is added in post-production, such as music and sound effects. Specific techniques are described: crescendos build sound or music to imply something is happening; diminuendos allow music or sound to die down to suggest a threat is gone; and sforzandos use short, sharp noises to emphasize shock or fear. The document also discusses sound motifs that associate sounds or music with characters to convey meaning to the audience.