1. Sound Diegetic Non-Diegetic

2. Diegetic Character’s voices Sound effects, both on and off-screen Music that can be identified as coming from a diegetic source such as jukeboxes, instruments and so on

3. Non-diegetic or commentary Voice-over narration Dramatic or imagined sound-effects A musical score or soundtrack

4. Acoustic Properties Loudness: The amplitude, or breadth, of vibrations produces our sense of loudness, or volume. Pitch: The frequency of sound vibrations governs pitch, or the perceived "highness" or "lowness" of the sound. Timbre: hen we call someone's voice nasal or certain musical tone mellow, we are referring to timbre.

5. Dimensions of Sound Rhythm: What elements have rhythm Fidelity: Fidelity refers to the extent to which the sound is faithful to the source as we, the audience conceive it. Space: Sound has spatial dimension because it comes from a source. Our beliefs about that source have a powerful effect on how we understand the sound. Time: Sound from earlier or later in story than image