What is Sound?
- Vibrations that travel through the air or another medium and can be heard when they reach the ear
- Sound produced by continuous and regular vibrations
- Sounds are waves that travel through space!
The Wave Travels Omnidirectionally!

The Nature of Sound, SINE waves!
The sine wave is a geometric waveform that oscillates (moves up, down, or side-to-side) periodically

Impact of Sound in Film
- “Sound is half the picture” - Gorge Lucas
- Conveys story and emotion
- Voice contains emotional tone and story progression
- Sound effects pack a visceral punch
- Music drives emotional tone and expression
Sound Quality vs Visual Quality
- We can be forgiving to poor visual quality in a way we cannot with sound
- Bad sound more powerfully breaks the illusion of the cinematic story, we get pulled out and remember this is a technical production
- Filmmaking strives to fully take you into another world