Instead of assuming a stationary listener and moving sound sources, this Timeline models a moving listener and stationary sound sources. Use the Pen to "travel" around in a two-dimensional plane, getting closer to some objects and further away from others as you move. PenRotation controls the direction you are facing. If you rotate your pen's "head", the sound sources rotate in the opposite direction so that they stay in the same positions relative to your point of view. PenRotation is a parameter of the Wacom Art pen (or you can remap it to another controller in the VCS if you do not have an Art pen).

-- CarlaScaletti - 22 Mar 2005