Split one ASIO audio device to many by the mask. Mask is applied for each device simultaneously. Format: X,X,X,....
Where X is the number of channels assigned from real device to split. For example, you have a device with the channels:0,1,2,3,4,5,6,7 - 7 in total. So if you set the Split audio channels=3,2,3 VT will create 3 audio devices with channels from the original device - 0,1,2; 3,4; 5,6,7