As the plug-in needs to constantly analyze the frequency masking between two tracks in real-time (background and prioritized), both signals have to be available to the plug-in:
- background signal: input/main signal
- prioritized signal: sidechain signal
Note: The inter-channel plug-in communication used by smart:EQ 4 cannot be used in this real-time scenario, as only an actual sidechain signal can guarantee sample synchronous data exchange.