Gen Crossover Ladder

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John Baylies
Joined: Jun 12 2019
Posts: 186

Gen Crossover Ladder

John Baylies (Eventide Staff) (My Eventide Gear)
August 01, 2021 - 04:29 pm

The H9000 has a C/C++ plugin API used in collaboration with Cycling 74 to make plugins from Gen that run on the H9000. If you would like to utilize this, email support@eventide.com to have your Cycling '74 account registered.

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This algorithm is my edit of Peter Mculloch's Gen port of a version of the Moog ladder filter originally created at the Zurich University of the Arts by Beat Frei. It is 96kHz-compatible, but you'll have to scale the frequency parameters appropriately.. Here it is in action: https://etide.io/RGeof

in1 & in2 are summed, then split through a crossover (made by Graham Wakefield) whose frequency is set by the xovr_Hz parameter. The lows are effected by amplitude modulation, and the highs are effected by ladder filter frequency&resonance modulation. You will have to find/create your own audio-rate LFO to run these three modulation inputs.

  • in3 Low amplitude (0 - 1)
  • in4 Ladder frequency (0 - 1)
  • in5 Ladder resonance (0 - 1)
  • out1 lows
  • out2 highs
  • out3, 4, and 5 are the same as the inputs, except these outputs approach 1 as the dry_wet parameter goes from 100 to 0. These signals can be useful for controlling audio-reactive visuals.

Download: https://etide.io/FuBJa The 9ka file can be uploaded directly to the H9000 using "Algorithm > Import Algorithm" in Emote's menu bar.