Can the IIR filters be used effectively with modulation?


#1

I want to implement some modulation in my synth and I am wondering if anybody has successfully used the IIR filters with modulation? My best guess is that recalculating the filter’s co-efficients repeatedly may lead to audio glitches. Can I get some feedback or suggestions?


#2

#3

Don’t use DFx or TDFx filters, use SVF or more generally topology preserving filters for this task to avoid artefacts.