In my program, I have the "mode" as "HeadRelative". I have the sound source at (0,0,1), the listener at (0,0,0), the head front as (0,0,1), and the head top as (0,1,0).
When I change the source position to (0,0,0), and the listener position to (0,0,-1), everything should be the same. However, the sound is now louder under these conditions.
I get the same results setting "mode" as "Normal".
