I'm a newbie here.
I would very much like to build something like this (of course this is merely schematic):A1 A2 LA3 A4A1,2,3,4 stands for Audio 1,2,3,4 (These are four tracks that should be playing simultaneously.)L is the "Listener".Now, one should be able to move the "L" by cursor or finger (phone, tablet), towardsthe different corners, which then should effect the volume. Moving close to A1, one should hear that track louder and the other tracks softer.Moving in between A1 and A2, one should hear these tracks at the same volume,but louder than A3 and A4, etc. The volume transitions need to be smooth.Could anyone give me a hint as to how to start building something like this?Any help would be highly appreciated!Thanks