- The technique of setting a sound in three-dimensional space.
That is spatialization.
- Binaural audio is a technique of encoding sound into XYZW channels and then routing those channels to any number of speakers in any arrangement.
That is ambisonics
- The technique of shifting the amplitudes of a sound source between sound channels.
That is panning.
- Binaural audio simulates three-dimensional sound using headphones, which is two channels of audio.