Yet another ZDF Ladder Filter
4th order ladder filter /w additional pickups
-Bugfix: Forward path and predictive path are now fed through the saturation in the Core Cell filter.
-Request: Test Ensemble has now big sized graphical elements.
-Open: The nonlinear filters can be driven to selfoscillation. But when resonance gets too high (>1.1), unwanted distortion is introduced. The built in filters dont behave like this. So I have to further investigate. But everything is fine while not selfoscillating
-Workaround: Limit Resonance to 1.1.
False connection in the Core Cell Filter fixed.
ZDF implementation of a 4th order ladder filter. The test ensemble and the DSP modelling is mainly inpspired by Vadims work and this performance.
I didn't use the ZDF-toolkit, since I worked out these equations some time ago, after I read Vadims book. Now you know why it is called z-transform. :)
The filters in this download consume less CPU, than the built in ZDF ladder filters. But this comes at the cost of less modularity.
This download contents:
- 1 Multimode four-pole ladder Core Cell for use in Primary.
- 1 Multimode four-pole ladder Core Module.
- 3 Ladder LP Core Modules with a modal pickup output. The architecture is mainly compatible to the built in ladder filters, so you may notice a few similarities and also some modules substituted from the built in filters.
- 20 Modal Pickups for the ladder filter, some of them are pretty like the built in pickups for the 4-pole ladder. So these pickups are compatible to the built in 4-pole ladder.