Separate channel target from system target

[YKH]

YKH

3 August 2025 at 12:24 am #1115

This request from topic https://forum.eclipseaudio.com/topic/auto-iir-target-doesnt-account-system-target/ already in your TODO list, duplicate it here for adding more ideas and have individual topic for each request.
The goal is to change design approach that combined graph should follow system target, channel target may follow only channel target.
It might be implemented in channel target tab as two checkboxes: “Add system target Magnitude [] Phase []”, very flexible.
My actual system example:
1) Sub channel and midbass channel with minphase LR crossover 80Hz.
2) System target is: phase shift 2rd order on 80Hz, same as from LR crossover; Low shelf linphase with frequency 133Hz

Combined response should be formed by gain of Sub channel, so for this example I will set for each channel targets “Add system target Magnitude [] Phase [v]” to inherit LR 80Hz phase shift but not low shelf magnitude change