It’s obvious: if the course is about 3D audio, it deals about sound, and we need to know what is sound and how it behaves: how it propagates, what energy it does carry, how it does interact with other sound sources.
The first lecture of the course is therefore a 2h introduction to acoustics, and therefore it is a summary of what you already know from previous acoustics courses:
The topics we will treat will be:
- Waves on the air
- The wave equation
- Plane waves
- Spherical waves
- Energy and intensity
- Decibel scale
- Features of the acoustic field
- Frequencies and energies
- Coherence and incoherence. Interference
- Reflexion law.
- Green function method
- Wave equation in presence of sources
- Diffraction and the Huygens principle
- Green function in the free field
Also you can get good acoustics simulations in Dan Roussell’s Acoustics and Vibrations Animations web page. See in particular the following animations:
- What is a wave?
- Wave motion in time and space
- Superposition of waves
- Longitudinal and transverse wave motion