HISE Logo Forum
    • Categories
    • Register
    • Login

    [Free Dsp] Analog Filter (24dB/oct)

    Scheduled Pinned Locked Moved ScriptNode
    13 Posts 8 Posters 604 Views
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • Oli UllmannO
      Oli Ullmann @griffinboy
      last edited by

      @griffinboy
      This is great! Thank you! :-)

      1 Reply Last reply Reply Quote 1
      • griffinboyG
        griffinboy @griffinboy
        last edited by griffinboy

        @griffinboy

        update*
        Fixed a typo in the monophonic script, it should work now

        1 Reply Last reply Reply Quote 1
        • d.healeyD
          d.healey @griffinboy
          last edited by

          @griffinboy said in Free Effect: Analog Filter for scriptnode (24dB/oct):

          Now restart hise, and you will be able to use the Node:

          I think the process has changed with the latest version of HISE?

          Libre Wave - Freedom respecting instruments and effects
          My Patreon - HISE tutorials
          YouTube Channel - Public HISE tutorials

          griffinboyG 1 Reply Last reply Reply Quote 0
          • griffinboyG
            griffinboy @d.healey
            last edited by

            @d-healey

            Did it! I'm not on the latest version of hise, what is different? I should update

            d.healeyD 1 Reply Last reply Reply Quote 0
            • d.healeyD
              d.healey @griffinboy
              last edited by

              @griffinboy I'm basing my assumption on this thread - https://forum.hise.audio/topic/11731/scriptnode-compilation-workflow-and-what-to-do-about-it

              Libre Wave - Freedom respecting instruments and effects
              My Patreon - HISE tutorials
              YouTube Channel - Public HISE tutorials

              Christoph HartC 1 Reply Last reply Reply Quote 0
              • Christoph HartC
                Christoph Hart @d.healey
                last edited by

                Now restart hise, and you will be able to use the Node:

                Yes. it should read now:

                Now press OK and you will be able to use the node

                It's the small details :)

                griffinboyG 1 Reply Last reply Reply Quote 4
                • griffinboyG
                  griffinboy @Christoph Hart
                  last edited by

                  @Christoph-Hart

                  Nice update!

                  ustkU 1 Reply Last reply Reply Quote 0
                  • DabDabD
                    DabDab @griffinboy
                    last edited by

                    @griffinboy Waiting for your Youtube Tutorials.

                    Bollywood Music Producer and Trance Producer.

                    1 Reply Last reply Reply Quote 1
                    • ustkU
                      ustk @griffinboy
                      last edited by

                      @griffinboy Nice one! 👍 👍

                      Can't help pressing F5 in the forum...

                      1 Reply Last reply Reply Quote 0
                      • DabDabD
                        DabDab
                        last edited by

                        I have tried to make it a High Pass Filter from the Griffin_LadderFilter.h provided by @griffinboy
                        I am not a good C++ DSP programmer. Test it whether it is working or not.

                        /*
                        Copyright (c) 2024 griffinboy
                        
                        Permission is hereby granted, free of charge, to any person obtaining a copy
                        of this software and associated documentation files (the "Software"), to deal
                        in the Software without restriction, including without limitation the rights
                        to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
                        copies of the Software, and to permit persons to whom the Software is
                        furnished to do so, subject to the following conditions:
                        
                        The above copyright notice and this permission notice shall be included in all
                        copies or substantial portions of the Software.
                        
                        THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
                        IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
                        FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
                        AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
                        LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
                        OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
                        SOFTWARE.
                        */
                        
                        #pragma once
                        #include <JuceHeader.h>
                        
                        namespace project
                        {
                            using namespace juce;
                            using namespace hise;
                            using namespace scriptnode;
                        
                            template <typename T>
                            class ScopedValue
                            {
                            public:
                                explicit ScopedValue(T& val) : value(val), ref(val) {}
                                ~ScopedValue() { ref = value; }
                                T& get() { return value; }
                        
                            private:
                                T value;
                                T& ref;
                                ScopedValue(const ScopedValue&) = delete;
                                ScopedValue& operator=(const ScopedValue&) = delete;
                            };
                        
                            template <int NV>
                            struct Griffin_HighPassFilter : public data::base
                            {
                                SNEX_NODE(Griffin_HighPassFilter);
                        
                                struct MetadataClass
                                {
                                    SN_NODE_ID("Griffin_HighPassFilter");
                                };
                        
                                static constexpr bool isModNode() { return false; }
                                static constexpr bool isPolyphonic() { return NV > 1; }
                                static constexpr bool hasTail() { return true; }
                                static constexpr bool isSuspendedOnSilence() { return false; }
                                static constexpr int getFixChannelAmount() { return 2; }
                        
                                static constexpr int NumTables = 0;
                                static constexpr int NumSliderPacks = 0;
                                static constexpr int NumAudioFiles = 0;
                                static constexpr int NumFilters = 0;
                                static constexpr int NumDisplayBuffers = 0;
                        
                                void prepare(PrepareSpecs specs)
                                {
                                    filtersLeft.prepare(specs);
                                    filtersRight.prepare(specs);
                        
                                    for (auto& filter : filtersLeft)
                                        filter.prepare(specs.sampleRate);
                        
                                    for (auto& filter : filtersRight)
                                        filter.prepare(specs.sampleRate);
                                }
                        
                                void reset()
                                {
                                    for (auto& filter : filtersLeft)
                                        filter.reset();
                        
                                    for (auto& filter : filtersRight)
                                        filter.reset();
                                }
                        
                                template <typename ProcessDataType>
                                void process(ProcessDataType& data)
                                {
                                    auto& fixData = data.template as<ProcessData<getFixChannelAmount()>>();
                                    auto audioBlock = fixData.toAudioBlock();
                        
                                    auto* leftChannelData = audioBlock.getChannelPointer(0);
                                    auto* rightChannelData = audioBlock.getChannelPointer(1);
                                    int numSamples = (int)data.getNumSamples();
                        
                                    for (auto& leftFilter : filtersLeft)
                                    {
                                        leftFilter.process(leftChannelData, numSamples);
                                    }
                        
                                    for (auto& rightFilter : filtersRight)
                                    {
                                        rightFilter.process(rightChannelData, numSamples);
                                    }
                                }
                        
                                class AudioEffect
                                {
                                public:
                                    AudioEffect() = default;
                        
                                    void prepare(float sampleRate)
                                    {
                                        fs = sampleRate;
                                        reset();
                                    }
                        
                                    void reset()
                                    {
                                        x1 = x2 = y1 = y2 = 0.0f;
                                    }
                        
                                    void updateCoefficients(float fc, float q)
                                    {
                                        float omega = 2.0f * MathConstants<float>::pi * fc / fs;
                                        float alpha = std::sin(omega) / (2.0f * q);
                                        float cosOmega = std::cos(omega);
                        
                                        float a0 = 1.0f + alpha;
                                        b0 = (1.0f + cosOmega) / (2.0f * a0);
                                        b1 = -(1.0f + cosOmega) / a0;
                                        b2 = (1.0f + cosOmega) / (2.0f * a0);
                                        a1 = (-2.0f * cosOmega) / a0;
                                        a2 = (1.0f - alpha) / a0;
                                    }
                        
                                    void process(float* samples, int numSamples)
                                    {
                                        for (int i = 0; i < numSamples; ++i)
                                        {
                                            samples[i] = processSample(samples[i]);
                                        }
                                    }
                        
                                private:
                                    float fs = 44100.0f;
                                    float b0 = 0.0f, b1 = 0.0f, b2 = 0.0f;
                                    float a1 = 0.0f, a2 = 0.0f;
                                    float x1 = 0.0f, x2 = 0.0f;
                                    float y1 = 0.0f, y2 = 0.0f;
                        
                                    inline float processSample(float input)
                                    {
                                        float output = b0 * input + b1 * x1 + b2 * x2 - a1 * y1 - a2 * y2;
                                        
                                        x2 = x1;
                                        x1 = input;
                                        y2 = y1;
                                        y1 = output;
                                        
                                        return output;
                                    }
                                };
                        
                                template <int P>
                                void setParameter(double value)
                                {
                                    if (P == 0) // Cutoff Frequency
                                    {
                                        cutoffFrequency = static_cast<float>(value);
                                        for (auto& filter : filtersLeft)
                                            filter.updateCoefficients(cutoffFrequency, q);
                        
                                        for (auto& filter : filtersRight)
                                            filter.updateCoefficients(cutoffFrequency, q);
                                    }
                                    else if (P == 1) // Q Factor
                                    {
                                        q = static_cast<float>(value);
                                        for (auto& filter : filtersLeft)
                                            filter.updateCoefficients(cutoffFrequency, q);
                        
                                        for (auto& filter : filtersRight)
                                            filter.updateCoefficients(cutoffFrequency, q);
                                    }
                                }
                        
                                void createParameters(ParameterDataList& data)
                                {
                                    {
                                        parameter::data p("Cutoff Frequency", { 20.0, 20000.0, 1.0 });
                                        registerCallback<0>(p);
                                        p.setDefaultValue(1000.0);
                                        data.add(std::move(p));
                                    }
                                    {
                                        parameter::data p("Q Factor", { 0.1, 10.0, 0.01 });
                                        registerCallback<1>(p);
                                        p.setDefaultValue(0.707);
                                        data.add(std::move(p));
                                    }
                                }
                        
                                void setExternalData(const ExternalData& data, int index) {}
                                void handleHiseEvent(HiseEvent& e) {}
                        
                                template <typename FrameDataType>
                                void processFrame(FrameDataType& data) {}
                        
                            private:
                                PolyData<AudioEffect, NV> filtersLeft;
                                PolyData<AudioEffect, NV> filtersRight;
                                float cutoffFrequency = 1000.0f;
                                float q = 0.707f;
                            };
                        }
                        
                        

                        Bollywood Music Producer and Trance Producer.

                        1 Reply Last reply Reply Quote 1
                        • First post
                          Last post

                        18

                        Online

                        1.7k

                        Users

                        11.9k

                        Topics

                        103.3k

                        Posts