D4p0up / eq1979

Frequency accurate modeling of Neve 1073 EQ for Reaper using JSFX

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EQ1979 jsfx plugin


Use the Github "Release" download link to get the plugin.

Plugin works with external files, notably GUI located in /data folder.


Frequency accurate modeling of a Neve 1073 filter stage combined with an input gain-compensated saturation. Designed by cascading ~30 peq/butterworth filters to reproduce frequency response, bumps and drops of the original console strip. Input saturation based on "arctan" modeling, which is gain-compensated. Includes additional independant gain trimming.

Controls :

  • Left mouse button to change knob value, right mouse button resets control.
  • Frequency bands for Mid and Low and gain trimming is done using mouse wheel.

Versions :

  • Beta 0.96
    • New slick GUI By Fluidshell Design !
    • Improved saturation with progressive bias error
    • Electrical components noise modeling added
    • Frequency band controls can now be set/reset using mouse click too (mousewheel still).
    • Right clicking on the lower right corner of the UI displays/hides reaper native slider controls.
  • Beta 0.95
    • Improved modeling of HPF and Low Shelf filter responses
    • 10Hz parameter smoothing on Low, Mid and High frequency gain parameters for automation-safe operation
  • Beta 0.94 - internal bugfixing stage never released
  • Beta 0.93
    • HPF frequency response tuned with expected bump
    • Testing parameter smoothing on HPF
    • Correcting minor GUI bugs on switching to +-16dB for shelfs
  • Beta 0.92 :
    • GUI : Added mousex lock on control change, no more control swapping when adjusting parameter
    • Lowered low and high shelf EQ max gain down to 16dB as per original 1073 design
    • Added EQ On/Off and Phase buttons as per original 1073 design
    • minor tweaks
  • Beta 0.91 - Low Shelf GUI Fix and Sat mouse speed increase by 25%
  • Beta 0.9 - First release

To Do :

  • Update saturation model to match harmonics brought by the Neve input gain stage / transformer

Dependecies : Filter methods are derived from Oliver Belanger's COOKDSP library - Copyright (c) - 2014 - Olivier Belanger

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Frequency accurate modeling of Neve 1073 EQ for Reaper using JSFX

License:GNU General Public License v3.0