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• The Cut and Peak Filters are implemented based on juce::dsp::FilterDesign<float>::designIIRHighpassHighOrderButterworthMethod

• A FIFO structure is defined for audio buffer handling

• The Spectrum Analyzer is implemented by a Path Producer structure handling the juce::Path Components, with get FFT result from both left and right channels. A Responsive Curve Element class is defined to handle the curve drawing, with some callback functions.

• The visuals and click wheels are implemented based on a custom rotary slider class, inherited from the juce::Slider class and also based on the juce::LookAndFeel_V4 class.

• This dark blue color palette was chosen to conform with the Channel EQ plugin of Logic Pro

• Download at: https://github.com/747745124/simpleEQ_OSX/releases/tag/on_pub