This project is derived from code written by maxprod from the JUCE forums. https://forum.juce.com/t/wdf-new-restructuration-project-audio-processor/13104

The file WDF++.hpp is copyright (c) 2013 by Maxime Coorevits and licensed under the MIT License (http://www.opensource.org/licenses/mit-license.php). The other *.hpp, *.h, and .cpp files implementing a Fairchild 670 Limiter are not licensed explicitly.

maxprod July 2, 2014

Hi,

I'm back with some new about my WDF++ project that is in stand-by since few months but with enough information to share with those who want to use this project.

The new version correct some little bugs, now the main class is named OnePort and i've add a IdealTransformer and a NewtonRaphson class easy to use to solve implicit equations.

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The project is based on the DAFX-12 paper of Peter Raffensperger named : Toward a Wave Digital Filter Model of the Fairchild 670 Limiter.

The Fairchild 670 Limiter is a 50's stereo compressor that is know as "the mother of all compressor", a part of the sound of The Beatles. Today Fairchild is dead and the compressor is a high-price vintage rarity.

Peter explore the Wave Digital Filter model to generate a pretty good approximation of the sound of the original compressor.

If you want to read the paper : http://dafx12.york.ac.uk/papers/dafx12_submission_9.pdf

The idea is to write the circuit in WDF++ style and put the processor in a Juce AudioProcessor and by extension, a plugin. With a GUI that is already in progress, i need to work on the Stockli buttons (rotary button) in 3D, because i'm not a expert with Photoshop to generate photo-realistic 2D buttons. The main plate with a vintage style :

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I repeat that the project is not yet functionnal, but shared only in relation with the new WDF++ project, to help you to understand how to use the classes. I hope to find time to finish a definitive version of the plugin, but not before the end of the year.

In all case, the source code is already a good reference i think, better than the 5 lines of code of the initial diode clipper.

Feel free to use the WDF++ project, it's for the humanity benefice.

.oO Maxprod Oo.