Auto IIR target doesn’t account system target

[YKH]

YKH

23 July 2025 at 11:57 pm #1086

Used FirDesignerM version 4.4.4 and 4.4.5
Windows 11 pro 24H2 and MacOSX 15.5

Tab IIR and auto IIR target difference, second doesn’t account system target. Let say I have system target with gradual HF rolloff, my compression driver naturally follow this rolloff and I only need make it more smooth. In IIR tab target shows correctly as system target + Highpass target of driver. But in AutoIIR window, target miss system rolloff, therefore auto algorithm force HF to flat line (with highpass of driver). Can I do something in project setting to fix it? Or please, fix it

Screenshot

• This topic was modified 4 months ago by YKH.