Wwise SDK 2018.1.11

Rule for 3D panning of signals routed to a stereo bus. In AkPanningRule_Speakers mode, the angle of the front loudspeakers (uSpeakerAngles[0]) is used. In AkPanningRule_Headphones mode, the speaker angles are superseded with constant power panning between two virtual microphones spaced 180 degrees apart.

AkSoundEngine.h の 137 行目に定義があります。