jatinchowdhury18/complexnonlinearities

Complex Nonlinearities for Audio Signal Processing

Complex Nonlinearities

This repository contains recent research exploring purely digital complex nonlinear signal processing. Articles explaining the project in further detail can be found on Medium. A technical project overview is available online here.

Each nonlinear effect is available as an audio plugins (VST/VST3/AU). Builds of each plugin are available for Mac and Windows in the Bin/ directory. Linux users can find builds available on the Open Build Service, courtesy of Konstantin Voinov.

Current nonlinearities include:

1. Double Soft Clipper

2. Harmonic Exciter

3. Hysteresis

4. Nonlinear Biquad

5. Nonlinear Feedback

6. Wavefolding

7. Adaptive EQ

8. Nonlinear Allpass

9. Subharmonics Generator

10. Gated Recurrent Distortion

Organization

Each subfolder contains a specific nonlinearity, including Python simulations and a real-time implementation in JUCE/C++.

Binary files for each plugin can be found in the Bin/ folder. Currently only Windows builds and unsigned Mac builds are available.

License

The code in this repository is freely available under the GNU General Public License

complexnonlinearities's Issues

Meassuring Non Linearities

Hi you have a great posts in Medium, thanks! How did you measure the tape nonlinearity?

Subharmonics does not persist state

Hi! Those plugins sound awesome, but I am having a little problem with Subharmonics. It does not seem to persist state across project saves.

I create a new project with a Subharmonics instance, change the parameters and then save my project. I then close and re-open my project and the changes I made are gone and the initial state is loaded instead. I have tested other plugins and it seems to affect only Subharmonics...

I am using the VST Windows version with Mulab 8 as a DAW.

Errors building DoubleSoftClipper on linux

Hi!
I've come around your articles on Medium and wanted to try some plugins.
When I try to build DoubleSoftClipper, I get the following errors:
~/sources/ComplexNonlinearities/DoubleSoftClipper/Plugin/Builds/LinuxMakefile > make Compiling include_juce_audio_plugin_client_VST2.cpp Compiling PluginProcessor.cpp ../../Source/PluginProcessor.cpp: In constructor ‘DoubleSoftClipperAudioProcessor::DoubleSoftClipperAudioProcessor()’: ../../Source/PluginProcessor.cpp:29:41: error: cannot convert ‘std::atomic<float>*’ to ‘float*’ in assignment 29 | upperLim = vts.getRawParameterValue ("upperlim"); | ~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~ | | | std::atomic<float>* ../../Source/PluginProcessor.cpp:30:41: error: cannot convert ‘std::atomic<float>*’ to ‘float*’ in assignment 30 | lowerLim = vts.getRawParameterValue ("lowerlim"); | ~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~ | | | std::atomic<float>* ../../Source/PluginProcessor.cpp:31:38: error: cannot convert ‘std::atomic<float>*’ to ‘float*’ in assignment 31 | slope = vts.getRawParameterValue ("slope"); | ~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~ | | | std::atomic<float>* ../../Source/PluginProcessor.cpp:32:38: error: cannot convert ‘std::atomic<float>*’ to ‘float*’ in assignment 32 | width = vts.getRawParameterValue ("width"); | ~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~ | | | std::atomic<float>* ../../Source/PluginProcessor.cpp:33:42: error: cannot convert ‘std::atomic<float>*’ to ‘float*’ in assignment 33 | upperSkew = vts.getRawParameterValue ("upperskew"); | ~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~ | | | std::atomic<float>* ../../Source/PluginProcessor.cpp:34:42: error: cannot convert ‘std::atomic<float>*’ to ‘float*’ in assignment 34 | lowerSkew = vts.getRawParameterValue ("lowerskew"); | ~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~ | | | std::atomic<float>* make: *** [Makefile:220 : build/intermediate/Debug/PluginProcessor_a059e380.o] Erreur 1
I'm using Juce 6.0.1 on linux Mint 20 based on Ubuntu 20.04.
For the record, I've already successfully built some of your projects like the Aphex Exciter, also based on Juce.
Could you please help me with this problem?

Regards,
Yoann