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https://github.com/juce-framework/JUCE.git
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91 lines
3 KiB
C++
91 lines
3 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2017 - ROLI Ltd.
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JUCE is an open source library subject to commercial or open-source
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licensing.
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By using JUCE, you agree to the terms of both the JUCE 5 End-User License
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Agreement and JUCE 5 Privacy Policy (both updated and effective as of the
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27th April 2017).
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End User License Agreement: www.juce.com/juce-5-licence
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Privacy Policy: www.juce.com/juce-5-privacy-policy
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Or: You may also use this code under the terms of the GPL v3 (see
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www.gnu.org/licenses).
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JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
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EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
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DISCLAIMED.
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==============================================================================
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*/
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#include "../DSPDemo.h"
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//==============================================================================
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// @@ START_DEMO
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struct OverdriveDemo
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{
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void prepare (const ProcessSpec& spec)
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{
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sampleRate = spec.sampleRate;
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auto& gainUp = overdrive.get<0>();
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gainUp.setGainDecibels (24);
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auto& bias = overdrive.get<1>();
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bias.setBias (0.4f);
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auto& wavShaper = overdrive.get<2>();
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wavShaper.functionToUse = std::tanh;
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auto& dcFilter = overdrive.get<3>();
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dcFilter.state = IIR::Coefficients<float>::makeHighPass (sampleRate, 5.0);
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auto& gainDown = overdrive.get<4>();
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gainDown.setGainDecibels (-18.0f);
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overdrive.prepare (spec);
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}
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void process (const ProcessContextReplacing<float>& context)
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{
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overdrive.process (context);
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}
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void reset()
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{
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overdrive.reset();
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}
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void updateParameters()
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{
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if (sampleRate != 0)
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{
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overdrive.get<0>().setGainDecibels (static_cast<float> (inGainParam.getCurrentValue()));
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overdrive.get<4>().setGainDecibels (static_cast<float> (outGainParam.getCurrentValue()));
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}
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}
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//==============================================================================
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using GainProcessor = Gain<float>;
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using BiasProcessor = Bias<float>;
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using DriveProcessor = WaveShaper<float>;
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using DCFilter = ProcessorDuplicator<IIR::Filter<float>,
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IIR::Coefficients<float>>;
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ProcessorChain<GainProcessor, BiasProcessor, DriveProcessor, DCFilter, GainProcessor> overdrive;
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SliderParameter inGainParam { { -100.0, 60.0 }, 3, 24.0, "Input Gain", "dB" };
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SliderParameter outGainParam { { -100.0, 20.0 }, 3, -18.0, "Output Gain", "dB" };
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std::vector<DSPDemoParameterBase*> parameters { &inGainParam, &outGainParam };
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double sampleRate = 0;
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};
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// @@ END_DEMO
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RegisterDSPDemo<OverdriveDemo> overdriveDemo ("Overdrive", BinaryData::OverdriveDemo_cpp);
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