it's not a hack...but I use "Quick Battery" widget and it has a function that let's you adjust the sound volume in various areas, and other things as well. give it a try, its free in the android market.
Sent from my Epic 4g using Tapatalk Pro.
__________________
Epic Touch 4g (current) / Epic 4g / Touch Pro 2 / Touch Pro / PPC-6800 (mogul) /PPC-6700 (apache) / Sanyo RL-4930
|