An audio unit that can have any number of input buses and one output bus. Each input bus can be mono, in which case it can be panned using 3D coordinates and parameters. Stereo input buses pass directly through to the output. Four-channel ambisonic inputs are rendered to the output configuration. The single output bus can be configured with 2, 4, 5, 6, 7 or 8 channels.
- macOS 10.3–10.10Deprecated