In short...everything. Smaart v7 is a completely new code base developed from the ground-up. By starting with a clean slate, we have been able to reconsider, revise and improve all areas of the program, from the program’s fundamental architecture through to the details of the control interface. One of the most exciting new features of Smaart v7 is Rational Acoustics itself. We are the same people who have been developing and steering Smaart within SIA and EAW for the past 12 yrs.