V5 adds a number of new features, including:
New user interface
Phase, Group Delay, Step Response and Spectrogram plots
Phase wrap/unwrap, IR minimum phase conversion, IR delay calculation and adjustment
Separate windows for overlays, RTA and EQ functions
New algorithms for EQ adjustment offering exceptional tracking of target responses
Predicted effects of EQ on the impulse response and waterfall can be viewed in the EQ panel and can update live as filter settings are adjusted
"Modal" filter setting for parametric EQ filters to aid in correcting modal decay
A summary of the new features can be found here
Ching, is it possible to use this software for 7.1 system? Coz the menu only talk about FL, FR, with sub. If it works, may I ask how to use it. Thank You!!