Maximilan Lib Test Build on JUCE 6 - Visual Studio 2019 Problems

These errors resulted from following Josh Hodge's awesome YouTube Juce Tutorials series on The Audio Programmer channel. These errors were first picked up in tutorial 21.

Dev Environment

Visual Studio 19 on Windows 10 Machine Juce 6 Framework Maximilian cloned 12/8/2020

Errors

Severity Code Description Project File Line Suppression State

Error C2784 'const _Ty &std::min(const _Ty &,const _Ty &) noexcept()': could not deduce template argument for 'const _Ty &' from 'unsigned __int64' MaximilianLibTest_App C:\libraries\Maximilian\src\maximilian.cpp 1071

Error C2782 'const _Ty &std::min(const _Ty &,const _Ty &) noexcept()': template parameter '_Ty' is ambiguous MaximilianLibTest_App C:\libraries\Maximilian\src\maximilian.cpp 1071

Error C2780 'const _Ty &std::min(const _Ty &,const _Ty &,_Pr) noexcept()': expects 3 arguments - 2 provided MaximilianLibTest_App C:\libraries\Maximilian\src\maximilian.cpp 1071

Error C2664 'float maxiIFFT::process(std::vector<float,std::allocator> &,std::vector<float,std::allocator> &,maxiIFFT::fftModes)': cannot convert argument 1 from '_Ty *' to 'std::vector<float,std::allocator> &' MaximilianLibTest_App C:\libraries\Maximilian\src\libs\maxiConvolve.cpp 109

Error C2672 'std::min': no matching overloaded function found MaximilianLibTest_App C:\libraries\Maximilian\src\maximilian.cpp 1071

Error C2780 '_Ty std::min(std::initializer_list<_Elem>)': expects 1 arguments - 2 provided MaximilianLibTest_App C:\libraries\Maximilian\src\maximilian.cpp 1071

Error C2784 '_Ty std::min(std::initializer_list<_Elem>,_Pr)': could not deduce template argument for 'std::initializer_list<_Elem>' from 'unsigned long' MaximilianLibTest_App C:\libraries\Maximilian\src\maximilian.cpp 1071

JUCE 6 Project Setup

Full details of all lib paths included in project can be read from the .jucer file.

Other Notes.

• This problem has occured whilst following Josh Hodge's YouTube tutorial https://youtu.be/wEDr-gJxc_I

• The Maximilan synth class has been removed as per instructions.

• The structure of the Maximilian repo has changed since the video was released in Oct 2017. However, all the components seem to still be available.

• This issue has been flagged on the Maximilian Repo and has an active solution proposal and pull request and accepted for . Visit micknoise/Maximilian#88 for more info.

• maximilian.embind.cpp was also removed from the project as this was causing an error (Severity Code Description Project File Line Suppression State Error C1083 Cannot open include file: 'emscripten.h': No such file or directory MaximilianLibTest_App C:\libraries\Maximilian\src\maximilian.embind.cpp 7 ). As this was not shown in Josh's 2017 tutorial, I "guessed" that it would no be required.

@Claudio Stevanato has mentioned that: "

A. Maxillian oscillators are aliasing => they produce unwanted noise

B. You can build your own antialising oscillators with wavetable, just follow the turorial on this website https://earlevel.com/

C. For LFO and Envelope, if is trivial to create a custom implementation

D. I will soon create some tutorials on Josh website, so you will be able to create your own classes

"

But in order to follow along with the tutorial, the following changes are recommended to a couple of the Maximilian library classes.

Solutions

To fix min() errors:

replace line 1071 (void maxiSample::autoTrim(float alpha, float threshold, bool trimStart, bool trimEnd)) in maximilian.cpp to use int values.

        //int fadeSize=min((unsigned long)100, amplitudes.size());
	int fadeSize = min((unsigned long)100, (unsigned long)amplitudes.size());

to fix 'float maxiIFFT::process(std::vector<float,std::allocator> &,std::vector<float,std::allocator> &,maxiIFFT::fftModes)'

replace line 109 (return value for maxiConvolve::play(float w)) in maxiConvolve.cpp to use std::vectors (courtesty of @Xenakios)

   //return ifft.process(&sumReal.front(), &sumImag.front(), maxiIFFT::COMPLEX);
    return ifft.process(sumReal, sumImag, maxiIFFT::COMPLEX);

Credits

@Xenakios and @Claudio Stevanato on The Audio Programmer Discord channel.