I've just been using Nvidia's built in recording.Hi Bob. Don't know. What do you use for recording? An external software? VAM is basically Unity. I would start from Unity docs if I were you. To record 6 discrete audio channels I think for sure you have to place 6 discrete Unity Listeners in the Scene, and then find a software which can interface to Unity and record the 6 Listeners as discrete audio channels. Hope it helps ?