Control Spatial audio effect.
The ViFX Spatial Effect Combine 5.1 or 7.1 multi-channel movies into immersive surround sound, allowing users to experience the sound field environment of the movie scenes and fully immerse themselves in the movie.
This controls Spatial surround effect.
Spatial mode: Small mode makes sound as in a small room. Mid mode make sound as in a middle size room. Large mode makes sound as in a big room.
The scale factor for the spatial effect.